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Angie's Math Minutes Blog

Fractions on the Number Line

Posted by Angie Seltzer on 5/30/2018 to K-5 Fractions
Fractions on the Number Line
Why are fractions on the number line often difficult? Students must understand three essential concepts. 

Generalizing Area of Polygons

Posted by Angie Seltzer on 4/2/2018 to 6-8 Geometry
Generalizing Area of Polygons
Why are there so many different formulas for area? You can help students by focusing on a general formula.

Area of Circles and Ellipses

Posted by Angie Seltzer on 3/12/2018 to 6-8 Geometry
Area of Circles and Ellipses
A ratio can help you find the area of any circle or ellipse.

Studying Snow Density

Posted by Angie Seltzer on 2/13/2018 to 6-8 Ratios & Proportions
Studying Snow Density
Snow can be an inspiration for a math activity on a snowy day. 

Explain Your Thinking

Posted by Angie Seltzer on 1/17/2018 to K-5 Math Habits
Model Relationships

Are you giving kids lots of opportunities to explain math to each other? 

Model Relationships

Posted by Angie Seltzer on 11/18/2017 to K-5 Math Habits
Model Relationships

Do your students know how to use drawings and models to solve problems?

What are the CORE Math Goals?

Posted by Angie Seltzer on 8/29/2017 to Overview
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How can you identify and communicate core math goals? 

A New Direction

Posted by Angie Seltzer on 6/21/2017 to Overview
TpT's New Direction
What changes can you expect at the K-8 Math Sense website?  

Compare the Goals

Posted by Angie Seltzer on 9/8/2016 to Overview
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How can you quickly compare goals across grades?SaveSaveSaveSaveSaveSaveSaveSaveSaveSaveSaveSaveSaveSaveSaveSaveSaveSaveSave

Grouping While Counting

Posted by Angie Seltzer on 4/28/2016 to K-5 Base 10 Operations
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Why should you encourage kids to group objects as they count them?
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Keep Trying!

Posted by Angie Seltzer on 4/19/2016 to K-5 Math Habits


Help kids learn to make sense of problems and persevere in solving them.

Why Delay Formulas?

Posted by Angie Seltzer on 4/5/2016 to K-5 Measurement
Why Delay Formulas?
Have your students gotten mixed up with area and perimeter formulas? If you delay formulas and focus on the meanings, students are more likely to succeed with area and perimeter.