Techniques and Formulas
Measure area by counting full and half-unit squares.
Relate area to arithmetic operations (multiplication and addition).
Recognize area as a measurement of 2D shapes.
Area, Length, Width, Formula, Distributive property
1. Students continued creating their "Dream House." They put in all the things they wanted in their house. Once completed, they found the area of each room, pool, stores, etc. they wanted in their house. They used the formula A=LxW.
2. Students found the area of a variety of shapes and wrote a multiplication problem for each.
3. Students solved for area using the distributive property.
Draw irregular figures for the student. Tell them to find the area of the irregular shapes given.
1. How do you find area?
2. What do you need to do to the irregular shapes in order to find the area of the whole figure?
Visualize spatial relationships between shapes and planar space.
Recognize and apply reflections (flips), translations (slides), and rotations (turns).
Flip, Slide, Turn, Quarter turn, Half turn, Quadrant
1. Students were given an image made of tangrams. They needed to show me what it would look like if it flipped, slided, or turned. They showed me 90, 180, 270, and 360 degree turns with the image.
2. Students flipped shapes, slid shapes, quarter turned it, and half turned it. They drew how the shape would look like if that happened.
3. Students started creating an image of their choice on grid paper using plots. They drew their image in quadrant one. Next class, they will have to show how the image would look if it was flipped, turned or slid. They will be drawing it in the other quadrants.
Have students draw different shapes or pictures. Have then show you what a turn means, flip means, and slide means.