1234567891234567891234567891 2345678912345678912123456789 1234567893456789123456789123 4567891234567891234567891234 CCSS Measurement and Data (MD) 5678912345678912345678912345 Unpacking the Standards 6789qwertyuiopasdfghjklzxc12345 Grade 4 6789123456789mqwertyuiopasdfg hj12345612345678789klzxcvbnmw eruioasd123456789123456789123 4567891234567891234567891234 5678912345678912345678912345 Standard: 4.MD.1 Cluster (m/s/a) Math Practices: MP2, MP5, MP6 Related CA Standard Partial 6.MG.2.1, 7.MG.1.1 Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz.; l, ml; hr, min., sec. Within a single system of measurement, express measurements in a larger unit in terms of a smaller unit. Record measurement equivalents in a two-column table. For example, know that 1 ft is 12 times as long as 1 in. Express the length of a 4 ft snake as 48 in. Generate a conversion table for feet and inches listing the number pairs (1, 12), (2, 24), (3, 36),… Essential Skills/Concepts Know relative sizes of measurement units within one system of units—both metric and standard/customary (see Math standard language for specific measurement units). Be able to convert larger units into smaller units and vice versa (i.e. 2 meters = 200 centimeters, etc.) Be able to record measurement equivalents in a two-column table. Example: Feet Inches 1 foot 12 inches 4 feet 48 inches 8 feet 96 inches And list the conversions in number pairs (1, 12), (2, 24), (3,36), etc. Academic Vocabulary: Measurement units Metric measurement Standard/Customary Measurement Convert, conversions Teaching Notes/Strategies Using measurement tools (see resource column ), teach/review different measurement units and note their relation to each other (i.e., a cup is smaller than a quart; a foot is larger than an inch; an ounce is smaller than a pound). Use real objects to measure using the appropriate measuring tool. Use measurements taken to convert to smaller/larger units and record on a table. Resources Manipulatives: Rulers Weight Scale Capacity containers Clocks Anchor charts for metric and standard/customary measurements and their equivalents Math journals Making a Kilogram Estimating Weight Record 1 unit equivalents on an anchor chart: 12 inches = 1 foot, 3 feet = 1 yard; 2 cups = 1 pint, 2 pints = 1 quart; 16 ounces = 1 pound, etc. Measurement Conversion Word Problems Create Gallon Man to show capacity equivalents. All available at http://www.k- Students record measurement equivalent charts/tables in their math journals. Measurement Concentration Metric Relationships Capacity Creature 5mathteachingresources.com Standard: 4.MD.2 Cluster (m/s/a) Math Practices: MP1, MP2, MP4, MP5, MP6 Related CA Standard 5.MG.1.4 Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given in a larger unit in terms of a smaller unit. Represent measurement quantities using diagrams such as number line diagrams that feature a measurement scale. Essential Skills/Concepts Teaching Notes/Strategies Resources Prerequisite: knowledge acquired when mastery 4.MD.1. Prerequisite: knowledge of different units of money and how to convert from smaller to larger units (i.e., 4 quarters = 1 dollar). Prerequisite: 4.NF standard mastery working with fractions and decimals. Prerequisite: Be able to solve problems using the 4 operations. Sample Problem: Susan has 2 feet of ribbon. She wants 3 of her friends to get the same amount. How much ribbon will each friend get? Record in fractions or decimals. Solve word problems involving distance, time, liquid volume, mass, and money. Draw diagrams or use manipulatives to solve problems (see Resource column) Problems should include simple fractions or decimals. Use conversion tables/charts to aid in converting units to solve problems. Problems should require converting units from smaller to larger and vice versa. Partner work/talk about how to solve problems. Measurement Word Problems Represent measurement quantities using diagrams such as number line diagrams that feature a measurement scale. Students write solutions in journals. Elapsed Time Ruler 2 Academic Vocabulary: All available at http://www.k5mathteachingresources.com Use the PUSD Universal Problem Solving Strategy to attack word problems. Convert—conversion Intervals of time Manipulatives: Rulers Number line diagrams with a measurement scale Clocks Capacity containers Play money Weight Scale Math Journals Conversion Tables Anchor Charts Elapsed Time Ruler 1 24 Hour Number Line (4 per page) Standard: 4.MD.3 Cluster (m/s/a) Math Practices: MP2, MP4, MP5, MP6, MP7 Related CA Standard 4.AF.1.4, 4.MG.1.1, 4.MG.1.2, 4.MG.1.3, 4.MG.1.4 Apply the area and perimeter formulas for rectangles in real-world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor. Essential Skills/Concepts rd Teaching Notes/Strategies Use prior knowledge acquired in 3 grade which is an understanding of area/perimeter. Use graph paper, rulers, pattern blocks, or any other materials to draw diagrams and measure the area/perimeter. Use formulas to calculate area and perimeter of rectangles. From these diagrams, the formulas for area and perimeter should evolve. Students then need adequate practice with the formulas and marking them appropriate (i.e. sq2, ft.) Be able to communicate their understanding of why the formulas work. Know that the answers for the formulas will be in square units for area and linear units for perimeter and mark appropriately. Academic Vocabulary: Area length Perimeter width Square feet Linear feet Formulas Sample Problem: Sally wants to build a pen for her dog Callie. Her parents give her $200 to buy the fencing, but want Sally to design the pen. Her parents suggest that she consider different plans. Her parents also remind her that Callie needs as much room as possible to run and play and that the pen can be placed anywhere in the yard and the wall of the house could be used as one side of the pen. Sally decides to buy fencing material that costs $8.50 per foot. She will also need at least one three foot wide gate for the pen that costs $15. --Design a pen for Callie. Experiment with different pen designs and consider the advice from Sally’s parents. Sally’s house can also be any configuration. Show your various design configurations and explain why certain designs are better for Callie. Resources Manipulatives: Pattern blocks Graph paper Rulers Anchor chart for formulas How Many Tables? Fencing a Garden Designing a Zoo Enclosure All available at http://www.k5mathteachingresources.com Standard: 4.MD.4 Cluster (m/s/a) Math Practices: MP2, MP4. MP5, MP6, MP7 Related CA Standard 4.SDAP.1.0, 4.SDAP.1.3 Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8). Solve problems involving addition and subtraction of fractions by using information presented in line plots. For example, from a line plot, find and interpret the difference in length between the longest and shortest specimens in an insect collection. Essential Skills/Concepts Prerequisites: Understanding fraction units and adding/subtracting of fractions (4.NF standards). Make a line plot to display a data set of measurements in fractions of a unit. Solve problems using addition and subtraction of fractions by using information presented in line plots. Teaching Notes/Strategies PDIM on how to read a line plot. PDIM on how to make a line plot using a set of data. Have students create line plots using graph paper. Ask similar questions as those below. Have students collect authentic data from classmates and put on a line plot. Have them compare their line plots and answer questions as partners. Have students write in math journals about how to read/solve problems using line plots. Academic Vocabulary: Line plots Data set Sample Problem: Ten students measure objects in their desk to the nearest (1/2, ¼, 1/8) inch. They record their results on the line plot below (in inches) (show example of line plot). --How many objects measures ½, ¼, 1/8 inch? --If you put the objects end to end, what would the total length be? --If five 1/8 inch pencils are placed end to end, what would be the total length? Resources Graph paper to draw line plots Math journals Anchor charts Length of Ants Line Plot Objects in My Desk Line Plot Both available at http://www.k5mathteachingresources.com Standard: 4.MD.5a Cluster (m/s/a) Math Practices: MP6, MP7 Related CA Standard 4.MG.3.5 Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement. a. An angle is measured with reference to a circle with its center at the common endpoint of the rays, by considering the fraction of the circular arc between the points where the two rays intersect the circle. An angle that turns through 1/360 of a circle is called a “one-degree angle,” and can be used to measure angles. Essential Skills/Concepts Prerequisites: definition/examples of endpoints, circles, rays Understand that angles are geometric shapes formed by two rays that share a common endpoint. Understand that an angle measure is a portion of a circular arc that is formed by the angle when a circle is centered at their shared vertex and that the ARC is what is measured, not the size of the “pie piece” that the angle makes (because different size circles making different size “pie pieces” but the ARC measurement (i.e. 60o) is the same, no matter the size of the circle.) Understand that there are 360 degrees in a circle and that an angle that turns through 1/360 of a circle is called a one-degree angle. Understand that these degrees can be used to measure angles. Teaching Notes/Strategies Math journals (or a Geometry Book) to record definitions and draw examples of geometric shapes. Use a diagram showing an angle as part of a circle to help students see than an angle is determined by the arc it creates relative to the size of the entire circle. Resources Rulers to draw angles Compasses to draw circles Protractors to measure angles Graph paper to draw figures Math journals (or geometry books) Graph paper to draw figures Color code the different parts: rays, endpoints, arc PDIM on how to use a compass. Have students draw this diagram with various sizes of circles and angles to reinforce concept. PDIM on using a protractor to measure angles. Then have students use protractors to measure angles. Make your own worksheets to practice angle measurement. http://www.worksheetworks.com/math/geometry/m easuring-angles.html http://www.math-aids.com/Geometry/Angles/ Academic Vocabulary: Angles circular arc Shapes rotation Rays vertex Endpoint protractor Degrees and its symbol compass o Standard: 4.MD.5b Cluster(m/s/a) Math Practices: MP6, MP7 Related CA Standard NEW An angle that turns through n one-degree angle is said to have an angle measure of n degrees. Essential Skills/Concepts Prerequisite: Understand that a 360 rotation makes a complete circle Teaching Notes/Strategies o Understand that if an angle turns through n one-degree angle, it is said to have an angle measure of n degrees. (i.e., An angle turns through 40 onedegree angles, so it has a measurement of 40 degrees.) Academic Vocabulary: Variable Degrees and its symbol Angles Rotation o Resources Use graph paper to draw/show each one-degree angle in an angle (such as a 5 degree angle). Graph paper for drawing angles Mark the ARC of a circle with the onedegree increments to increase understanding. Protractor for measuring circles Compass for drawing circles Standard: 4.MD.6 Cluster (m/s/a) Math Practices: MP2, MP5, MP6 Related CA Standard 5.MG.2.1 Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure. Essential Skills/Concepts Prerequisite: Understand that a 360 rotation makes a complete circle Understand benchmark angles of 90 and 180o. o Understand benchmark angles of 45 and 30o. o Teaching Notes/Strategies o Students can use appropriate terminology of acute, right, and obtuse to describe angles and rays (perpendicular). Academic Vocabulary: Rotation Degrees and its symbol o Benchmark angles Acute, right, obtuse, perpendicular Use angles in context (such as clock hands) to measure/compare/identify angles. Student identify different types of angles using real-world objects around them. Students compare angles to the benchmark angles identified in the skills column Resources Protractors Clocks with 2 hands (to show different angles in context) Math Journal (or geometry book) Predicting and Measuring Angles Angle Barrier Game Angles in Triangles Angles in Quadrilaterals All available at http://www.k5mathteachingresources.com Related CA Standard NEW Math Practices: MP6, MP7 Standard: 4.MD.7 Cluster (m/s/a) Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in real-world and mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure. Essential Skills/Concepts Teaching Notes/Strategies Prerequisites: Understand concepts of angle measure, gain experience measuring angles, and familiarity with the geometric terms used to define angles as geometric shapes (4.MD.5 and 4.MD.6). PDIM on how to solve for an unknown angle. Recognize that angle measurements can be added together to form larger angles. Given real-world problems, students write equations to solve problems for unknown angles. When an angle is broken into several parts, the sum of the angles measurements added together is the measurement of the whole angle. Students discuss how they solved problems and/or write them in math journals (or a geometry book). Solve addition/subtraction problems to find unknown angles on a diagram and in the real-world. Use equations with a symbol for the unknown angle measure. Academic Vocabulary: See previous 4.MD standards 5 and 6 Students use pattern blocks to simulate problems Given a diagram, students write equations to solve problems for unknown angles. Sample Problem: a. In the roof framework shown, the measure of one angle is 80o. What is the unknown angle measure? n 80o b. When the clocks hands are on the 12 and 1, the angle is 30o, so what is the measurement of the angle when the hands are on the 12 and the 4? Resources Protractors Clocks with hands for solving real-world problems Graph paper or tracing paper for drawing Pattern blocks for manipulating angles to solve problems Math journals Anchor charts of different types of angles. Unknown Angle Word Problems How Many Degrees? Angles in a Right Triangle Pattern Block Angles All available at http://www.k5mathteachingresources.com