By Mary Cavanagh, Carol Findell, Carole Greenes
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Extra info for Algebra Readiness Made Easy: Grade 3: An Essential Part of Every Math Curriculum [With 10 Full-Color Transparencies]
__________ 3. If one cube weighs 5 pounds, how many pounds are 3 cylinders? __________ 4. How did you figure out the answer to #3? ______________ _______________________________________________ 58 Algebra Readiness Made Easy: Gr. 3 © 2008 by Greenes, Findell & Cavanagh, Scholastic Teaching Resources on each cylinder. Name _____________________________________________ Date __________________ BALANCING BLOCKS PROBLEM 3 How many spheres will balance 3 cubes? Blocks that are the same weigh the same.
Algebra Understand that same blocks have the same value in a given problem • Substitute one set of blocks for a second set of equal weight in order to preserve balance • Reason about proportional relationships Problem-Solving Strategies Reason deductively Related Math Skills Add and multiply, basic facts • Recognize spheres, cylinders, cones, and cubes from their two-dimensional drawings Math Language • Balance • Cone • Cube • Cylinder • Sphere • Weigh the same Introducing the Problem Set Make photocopies of “Solve the Problem: Balancing Blocks” (page 55) and distribute to children.
One school bus weighs _______ pounds. 2. The flatbed truck weighs _______ pounds. 3. The school bus weighs _______ pounds more than the flatbed truck. 4. Two flatbed trucks and two school buses weigh _______ pounds all together. 37 Name _____________________________________________ Date __________________ MINI MOVERS PROBLEM 4 How much do the toys weigh? 20 pounds SCALE A 16 pounds SCALE B 2. The tow truck weighs _______ pounds. 3. How did you figure out the answer to #2? _______________ _______________________________________________ 4.