10-4 Problem-Solving Practice
3 What shapes do you see
below?
5. Kay can draw 3 different shapes with 4 vertices. What are they?
4. If a triangle had 1 more side, what shape could it be?
6. Bill draws 1 line to make a shape. It has no vertices. What is the shape?
2MG2.0, 2MG2.1
Pdf Pass
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Chapter Resources Grade 2 187 Chapter 11 Cop yr ight © Macmillan/McGr a w-Hill, a division of The McGr a w-Hill Companies , Inc.
11-6
Homework Practice
Relate Plane Shapes to Solid Shapes
Look at the solid shape. Draw the plane shape you would make if you traced it.
1.
2.
3.
4.
Solve.
5. Jerry drew a shape with one circle face. The shape has one vertex. What shape did he draw?
6. Mary traced the face of a can. What shape did she make?
7. What shape has zero vertices and zero sides?
2MG2.0, 2MR1.2
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Grade 2 188 Chapter 11 Cop yr ight © Macmillan/McGr a w-Hill, a division of The McGr a w-Hill Companies , Inc.
11-6
Problem-Solving Practice
Relate Plane Shapes to Solid Shapes
For 1 and 2, draw the shape. For 3–8, write the answer. 1. Jen has a number cube.
What shape can she trace from her cube?
3. Nat traces the face of a cylinder. What shape does he make?
5. Emily is drawing a square. She traces the face of a solid shape to make one. What does she use?
7. Seth has a pyramid. What two shapes could he trace with this piece?
2. Aaron has an ice-cream cone. What shape can he trace from his cone?
4. Grace traces the face of a rectangular prism. What shape does she make?
6. Zack is drawing a circle. He traces the face of a
solid shape to make one. What figure does he use?
8. Compare a triangle and a pyramid. How are they alike?
2MG2.0, 2MR1.2 Pdf Pass 177_192_CAG2C11_111966.indd 188 177_192_CAG2C11_111966.indd 188 5/20/10 6:32:22 PM5/20/10 6:32:22 PM
Chapter Resources Grade 2 189 Chapter 11 Cop yr ight © Macmillan/McGr a w-Hill, a division of The McGr a w-Hill Companies , Inc.
Homework Practice
Make New Shapes
Preparation: Paper pattern blocks are needed for this activity. Use triangles and squares to make new shapes. 1. Make a rectangle.
2. Make a square.
3. Make a parallelogram.
4. Make a trapezoid.
Write the answer. Use paper pattern blocks to help.
5. Anna wants to make a trapezoid. What is the least number of triangles she will need? triangles
6. Mike has some triangles. How many will he need to
make a hexagon? triangles
11-7
2MG2.2, 2MR1.2Pdf Pass
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Grade 2 190 Chapter 11 Cop yr ight © Macmillan/McGr a w-Hill, a division of The McGr a w-Hill Companies , Inc.
11-7
Problem-Solving Practice
Make New Shapes
Preparation: Pattern blocks are needed for this activity. Write the answer. Use pattern blocks to help. 1. Anton puts 2 triangles
together. What shape does he make?
3. Nick makes a hexagon with 2 pattern blocks of the same shape. What shape does he use?
5. Frank uses 4 shapes to make a hexagon. Some of the shapes are alike. Some are different. What shapes does he use?
Draw the hexagon.
2. Emma puts 2 squares
together. What shape does she make?
4. Sue makes a trapezoid with 3 pattern blocks of the same shape. What shape does she use?
6. Ann says she knows 2 different ways to make a hexagon with pattern block shapes. What blocks can she use? 2MG2.2, 2MR1.2 Pdf Pass 177_192_CAG2C11_111966.indd 190 177_192_CAG2C11_111966.indd 190 5/27/10 10:26:15 AM5/27/10 10:26:15 AM
Chapter Resources Grade 2 191 Chapter 11 Cop yr ight © Macmillan/McGr a w-Hill, a division of The McGr a w-Hill Companies , Inc.
11-8
Homework Practice
Problem-Solving Investigation: Choose a Strategy
Choose a strategy to solve.
1. Matt wants to make a rectangle out of smaller shapes. He says he can do it with a square and 2 triangles. Is he right?
2. Tim says he knows 2 different ways to make a trapezoid with pattern blocks. What blocks can he use?
3. Carl wants to draw a truck using plane shapes. What shapes could he use?
4. Two numbers have a product of 20 and a sum of 9. What are the numbers?
and
5. I have 8 edges. I also have 5 faces and 5 vertices. What shape am I?
Problem-Solving Strategies • Draw a Picture
• Act It Out
• Guess and Check
2MG2.0, 2MR2.2
Pdf Pass Crxs
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177_192_G2_C11_111966.indd 192
Chapter Resources Grade 2 193 Chapter 12 Cop yr ight © Macmillan/McGr a w-Hill, a division of The McGr a w-Hill Companies , Inc.
Homework Practice
Nonstandard UnitsPreparation: Paper clips are needed for this activity.
Find the object. Estimate. Then use to measure. 1.
XgVndc
Estimate: about Measure: about
2.
eraser
Estimate: about Measure: about
3.
Estimate: about Measure: about
4. A ribbon is 30 long. Minny cuts off a piece of ribbon about 10 long. Write a number sentence to find how much ribbon is left.
about left
12-1
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Grade 2 194 Chapter 12
Copyright © Macmillan/McGraw-Hill, a division of
The McGraw-Hill Companies, Inc.
Solve.
Problem-Solving Practice
Nonstandard Units
12-1
2NS6.1, 2MG1.11. A pencil is about 7 long. A pen is about 9 long. About how much longer is the pen?
9
-7
=The pen is about
longer.
2. A crayon is about 6 long. A paper clip is about
3 long. About how much shorter is the paper clip?
6
-3
=The paper clip is about
shorter.
3. Kat’s red string is about 12 long. Her blue string is about 8 long. How do the lengths compare? The blue string is
about shorter.
4. Fred’s white straw is about 13 tall. His green straw is about 16 tall. About how much taller is Fred’s green straw? The green straw is
about taller.
5. Paper Chain Contest
Room Length of Paper
Chain A
B C
Which room has the longest paper chain?
6. A fork is 8 long. A spoon is 6 long. A napkin is 9
long.Write three number sentences that compare the lengths of the napkin, fork, and spoon.
Pdf Pass
193_212_CAG2C12_111966.indd 194
Chapter Resources Grade 2 195 Chapter 12 Cop yr ight © Macmillan/McGr a w-Hill, a division of The McGr a w-Hill Companies , Inc.
Homework Practice
Measure to the Nearest Inch
Find the object. Estimate.
Then use an inch ruler to measure.
Find Estimate Measure
1.
math workbook
about inches inches
2.
shoe
about inches inches
3.
marker
about inches inches
Solve.
12-2
4. Six turtles sit in a row. Each turtle is 2 inches wide. About how long is the row of
turtles?
The row is about inches long.
5. Five beetles walk in a line. Each beetle is 3 inches long. About how long is the line of beetles?
The line is about inches long.
2MG1.3, 2NS6.1
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