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Angie's Math Minutes Blog

- Fractions on the Number Line
- Generalizing Area of Polygons
- Area of Circles and Ellipses
- Studying Snow Density
- Explain Your Thinking
- Model Relationships
- What are the CORE Math Goals?
- A New Direction
- Compare the Goals
- Grouping While Counting
- Keep Trying!
- Why Delay Formulas?
- Visualize Counting Patterns
- Why Use Ruler Grids?
- Estimate Pi
- Welcome

# Generalizing Area of Polygons

Posted by Angie Seltzer on 4/2/2018 to 6-8 Geometry

# Area of Circles and Ellipses

Posted by Angie Seltzer on 3/12/2018 to 6-8 Geometry

A ratio can help you find the area of any circle or ellipse.

# Estimate Pi

Posted by Angie Seltzer on 3/13/2016 to 6-8 Geometry

Help students estimate the value of pi by comparing a circle to a square or hexagon.