Developing Mathematical Thinking Institute PMA Grade 2 Spatial
- Slides: 28
Developing Mathematical Thinking Institute
PMA – Grade 2 Spatial Reasoning © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 2
Spatial Reasoning: Quick Draw What’s involved: • Composing and decomposing space • Orientation of objects • Examining and describing 2 and 3 dimensional space • Maneuvering space • Directional words (right, left, forward, back) • Transformational words (slide/translate, flip/reflect, turn/rotate) Why it matters: • Builds initial ideas of measurement, proportional reasoning, graphing, statistics and data • Connects concepts of spatial awareness to concepts of number • Focuses on the structure of mathematics: decomposing and composing • Highly predictive of success in math © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 3
Spatial Reasoning: Quick Draw Materials • Paper or drawing space © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 4
Spatial Reasoning: Quick Draw Terms • Transitivity – knowing the relationship of one measure to help determine another measure. 2 1 1 • I know if the left side is 2 units long then each of the lengths on the right is 1 and 1. • Rotate – to turn an object © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 5
Spatial Reasoning: Quick Draw Rotations • Here are some rotations that might be used. • • • I rotated the figure to the right a full turn. I rotated the figure to the right a quarter turn. I rotated the figure to the right a half turn. I rotated the figure to the left a quarter turn. I rotated the figure to the left a half turn. Right – full turn Right – quarter turn Right – half turn © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM Left – quarter turn Left – half turn 6
Spatial Reasoning : Quick Draw Activity 1. Have the child draw the shape on a piece of paper based on the orientation described. 2. The goal is for the child to be as precise or exact as possible. 3. Teach the child to use transitivity to be more precise. 4. Use the sentence frame below: - I know this length is (the same, longer, shorter, two times longer, half as long, . . . ) as this other length. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 7
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated a half turn to the left. 2. Use your fingers to determine whether your drawing is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 8
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a half turn to the left. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 9
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated a quarter turn to the left. 2. Use your fingers to determine whether your drawing is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 10
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a quarter turn to the left. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 11
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated a quarter turn to the left. 2. Use your fingers to determine whether your drawing is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 12
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a quarter turn to the left. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 13
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated a half turn to the right. 2. Use your fingers to determine whether your drawings is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 14
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a half turn to the right. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 15
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated a quarter turn to the left. 2. Use your fingers to determine whether your drawing is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 16
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a quarter turn to the left. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 17
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated quarter turn to the left. 2. Use your fingers to determine whether your drawing is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 18
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a quarter turn to the left. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 19
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated a half turn to the left. 2. Use your fingers to determine whether your drawing is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 20
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a half turn to the left. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 21
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated a quarter turn to the left. 2. Use your fingers to determine whether your drawing is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 22
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a quarter turn to the left. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 23
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated a half turn to the right. 2. Use your fingers to determine whether your drawing is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 24
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a half turn to the right. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 25
Spatial Reasoning: Quick Draw Activity 1. Draw this shape rotated a quarter turn to the left. 2. Use your fingers to determine whether your drawing is precise. Erase and change the lengths to make it the same if needed. 3. Compare the lengths of the different sides and explain the similarities or differences. 4. Once complete restate how the shape was changed. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 26
Spatial Reasoning: Quick Draw Let’s Check Here is the shape rotated a quarter turn to the left. © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 27
“The Developing Mathematical Thinking Institute (DMTI) is dedicated to enhancing students’ learning of mathematics by supporting educators in the implementation of researchbased instructional strategies through high-quality professional development, curricular resources and assessments. " For more information contact Dr. Brendefur at jonathan@dmtinstitute. com © DMTI (2019) | RESOURCE MATERIALS DMTINSTITUTE. COM 28
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