Math Games

Grade 4 - Shape and Space

Standard 4.SS.3 - Compare two figures and find which has the greater perimeter or area.

Included Skills:

Demonstrate an understanding of area of regular and irregular 2-D shapes by:
• recognizing that area is measured in square units.
• selecting and justifying referents for the units cm² or m².
• estimating area, using referents for cm² or m².
• determining and recording area (cm² or m²).
• constructing different rectangles for a given area (cm² or m²) in order to demonstrate that many different rectangles may have the same area.
• Describe area as the measure of surface recorded in square units.
• Identify and explain why the square is the most efficient unit for measuring area.
• Provide a referent for a square centimetre, and explain the choice.
• Provide a referent for a square metre, and explain the choice.
• Determine which standard square unit is represented by a given referent.
• Estimate the area of a given 2-D shape, using personal referents.
• Determine the area of a regular 2-D shape, and explain the strategy.
• Determine the area of an irregular 2-D shape, and explain the strategy.
• Construct a rectangle for a given area.
• Demonstrate that many rectangles are possible for a given area by drawing at least two different rectangles for the same given area.