Grade 3 Liquid Volume and Mass (and continue fact fluency practice) Unit 12 The Standard 1 Opening anchor activity Use with lesson 1 VIP vocabulary milliliter (ml), liter (L) 3.MD.2 Measure and estimate liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), and liters (l).1 Add, subtract, multiply, or divide to solve one-step word problems involving masses or volumes that are given in the same units, e.g., by using drawings (such as a beaker with a measurement scale) to represent the problem. BEFORE the video Borrow a liter box from the science lab. Using unit cubes, longs, flats and a 1000 block demonstrate the relative sizes by putting things into the liter box first one unit, next one long, one flat and finally a 1000 cube. Video Envision 15-2 and quiz Metric Units of Capacity Materials: liter bottle and a 4 liter container and another size or two to use to estimate classwork and homework options R15-2 P 15-2 Toss and Talk play whole class, discuss as you take each roll of dice Show the one liter bottle, ask if they think the liter box or the bottle holds more liquid. Demonstrate by filling the liter box and then pouring it into the bottle. Talk about how the shapes can be deceiving. A “Fuse” or hourglass shaped Gatorade bottle help make this point. Show video Demo: Tell students bottle has a one liter “capacity”. How can you estimate the volume of a larger container? About how many of these will this (another container hold)? How can you check? Fill repeatedly In Groups or Pairs: Have students work in groups to estimate the capacity of other containers using the litre bottle Optional video- measuring volume (2 min 37 sec) http://learnzillion.com/lessons/1270-understand-volume-and-how-volume-is-measured 1 2 may need 2 days VIP vocabulary mass, gram (g), kilogram (kg) Balance scale Materials: A dictionary, that weighs about a kilogram, classwork and homework today and tomorrow options R15-3 P 15-3 Toss and Talk play whole class, discuss as you take each roll of dice 3 Materials may want Balance scales and weights (may to spend want to do this lesson in the 2 days science lab) - Spring or other kinds of scales, to show (not use) Objects to weigh like an apple, a carrot, a book, a box of crayons Start with the envision clip for vocabulary intro show this video (time 2:51) http://learnzillion.com/lessons/1273-understand-mass-and-how-mass-is-measured Envision 15-3 Units of Mass Have kids get a feel for these items: pass around pen, apple, dollar bill, crayons, 2 nickels, follow with http://learnzillion.com/lessons/1274-estimate-mass-in-grams Show a dictionary, what do you think the mass might be? About 10? ask what do you think the mass of a typical third grader would be? watch http://learnzillion.com/lessons/1275-estimate-mass-in-kilograms-using-benchmarks Provide scales, ask students to estimate each item you are going to have them weigh. Do all estimates first. Ask them to defend/justify their estimates. Have groups weigh items, rotating items through the groups http://learnzillion.com/lessons/1276-measure-mass-in-grams yesterday we talk about what a third grader might weigh. How about the mass of a teacher? This video shows reading scales http://learnzillion.com/lessons/1277-measure-mass-in-kilograms Toss and Talk boards -Class & Homework see yesterday 4 Problem Solving Using Models to represent and solve Us the word problems on the enclosed sheet. Work should be done on separate Envision 15-5 paper. Emphasize labels, units etc. Be sure to have students draw a model or picture Problem to represent their thinking. Solving 2

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# unit 12 volume and mass