Mathy Matt Goes Online

I'm teaching online and I'm collecting some of my activities here. These are not all polished, but I will continue to add and go back and add more directions for each task as time allows.

Many of these activities are appropriate for K-12 students (sometimes with modifications).

Note about Desmos

Many of the activities below are on Desmos, which provides a variety of instructional tools. I have been playing with creating activities on teacher.desmos.com. They also have a number of activities they have created. Desmos tasks can be copied and modified for your own use.

Materials

Number

• Number Talk Example

Algebra/Patterns

Activities

• Little Houses Pattern - develop a general rule for a linear pattern

• The Pool Problem Part 1 - develop a general rule for a linear pattern

• The Pool Problem Part 2 - develop a general rule for a quadratic pattern

• The S-Pattern Task Part 1 - develop a general rule for a quadratic pattern

• The S-Pattern Task Part 2 - match symbols, words, and pictures for several strategies

Lectures/Tutorials

• Algebra Strategies Lecture - video about strategies for the Little Houses and Pool Problem Part 2 activities above

Geometry and Measurement

Activities

• Shape Sort - sort polygons however you want and then try to figure out some sorts others made

• Area Concepts - Lesson with video lectures about area formulas

• Area of Circles: Polygons - guide through the derivation of the area of a circle by approximating it with regular polygons (also see Circumference Lecture below)

• Area of Circles: Triangle - guide through the derivation of the area of a circle by transforming it into a triangle (also see Circumference Lecture below)

• "Pythagorean" Theorem - guide through a visual proof the the "Pythagorean" Theorem

• Water Containers - a 3D geometry, TinkerCad-based activity focused on designing containers to bring water to people in need

Lectures/Tutorials

• Area Concepts - Lesson with video lectures about area formulas

• Circumference Lecture - video about circumference and the meaning of pi

• Construct a Rectangle - video tutorial for how to construct a rectangle using the Desmos geometry tool

• Construct a Regular Hexagon - video tutorial for how to construct a regular hexagon using the Desmos geometry tool

Data and Analysis

• Income in the U.S. - an introduction to mean and median by exploring household income in the U.S.