Nonstandard Units of Measurement TEACHERS: SUBJECT: Lauri Lonon Math First Grade STANDARD: 1.MD.1 Order three objects by length; compare the lengths of two objects indirectly by using a third object 1.MD.2 Express the length of an object as a whole number of length units by laying multiple copies of a shorter object (the length unit) end to end; understand that the length measurement of an object is the number of same size length units that span it with no gaps or overlaps. Limit to contexts where the object being measured is spanned by a whole number of length units with no gaps or overlaps. OBJECTIVE (EXPLICIT): Measure an object (a flower) using different objects (worms) Measure an object (a flower) indirectly using a third object (a ladybug) EVIDENCE OF MASTERY (MEASURABLE): BEFORE SUB-OBJECTIVES, SWBAT (SEQUENCED FROM BASIC TO COMPLEX): KEY VOCABULARY: MATERIALS: Length Copy of flower sheet Height Worms and Ladybugs Measuring Tool Sheet LINKS: www.georgiastandards.org/CommonCore/Common%20Core%20Frameworks/CCGPS_Math_1_Unit4FrameworkSE.pdf TEACHER WILL: STUDENT WILL: Ask: Orally answer the questions I have a flower and I have a worm, I Students guide teacher through wonder how many worms long is the example using worms and ladybugs. flower? How would I find out? Where do I start to measure? Can I measure like this (put spaces between the worms) Can I measure like this (overlap the worms) How do I measure correctly then? I also have a ladybug. I wonder how many ladybugs long is the worm? How would I find out? Where do I start to measure? How do I measure correctly? If the worm is ___ ladybugs, how AFTER DURING many ladybugs long is the flower? How would I find out? Where do I start to measure? How do I measure with only 1 ladybug? Say: The flower is ____ ladybugs long, and the worm is _____ ladybugs long. CO-TEACHING STRATEGY IF APPLICABLE TEACHER WILL: STUDENT WILL: Explain Activity: With a partner, estimate Estimate and measure each flower how many worms you think it will take to using worms and a ladybug measure the flower. Measure the each flower using the worms and record your answers. Then estimate how many ladybugs it will take to measure the flower. Measure the each flower using a (one) ladybug and record your answer. CO-TEACHING STRATEGY IF APPLICABLE TEACHER WILL: STUDENT WILL: Ask: Partner Share: How did you measure the flower? You measure the flower by Tell the steps: first, next, then, last First, start from the bottom Next, lay one object on top of the If a worm is two ladybugs long and other without overlapping or gapping the flower is two worms long, what the objects could we count by to find our Then, stop at the top of the flower answer? Last, count the objects How can you check your answer? You can count by 2’s Say: In math journals, write how you measure an object. Then cut out a flower, You can measure the flower to the worms and 2 ladybugs. Glue a worm check your answer on top of a worm to the top of the flower to Write: the steps to measure an object show how many worms it is to measure the Cut Out the flowers, worms and ladybugs flower. Then glue 2 ladybugs next to the and glue down a picture to show how they worm at the bottom of the flower and write measured an object with the worms and + 2 next to each worm to the top of the ladybugs. Write an equation to show the flower. Write an equation to show how you number of ladybugs it takes to measure the would find the number of ladybugs it takes flower. to measure the flower. (ex. 2+2+2=6 ladybugs) CO-TEACHING STRATEGY IF APPLICABLE Name __________________ Date __________________ Flower Measurement Recording Sheet Directions: Estimate the length of each flower below. Then measure and record the length of each flower below. Estimate Actual Measure Flower Number Worm 1 2 3 4 5 6 Ladybugs Worm Ladybugs