Middle School and High School activities to use with the reading or telling of FLATLAND, by Edwin A. Abbott. Students will find missing side lengths, areas of regular polygons, and interior and exterior angles of polygons.
In any triangle the orthocenter, the centroid, and the circumcenter are collinear, as discovered by Leonhard Euler. Students will construct each of those 3 centers in 3 different triangles to discover the Euler Line.This is a great in-class activity
Students will measure their mathematics classroom, design a new floor covering, and present their design to the class. Measuring, finding area, finding cost of flooring, and writing up a proposal are all part of this task. This versatile activity
Discover Napoleon's Theorem by constructing points of concurrency of special lines in triangles. Investigate whether all points of concurrency produce the same result. Construct angle bisectors, altitudes, medians and perpendicular bisectors, and
Included are 6 sets of clues to direct students to the precise quadrilateral. This presentation can be used as pre-assessment, review, or practice, with a view toward identifying quadrilaterals by their characteristics. Use with whole class, groups,
This activity is a creative outlet for students to show their understanding of geometric terms regarding the circle. Use this as a pre-assessment, a post-assessment, a tool for differentiation for remediation or enrichment. Change the word list or
The Ten Commandments for Teachers, written by George Polya, are great reminders of things we have all heard and learned in our education courses. It is no surprise that they correlate to the Standards for Mathematical Practice in the Common Core
Kids love to play games, specifically BINGO. Insert any problems into this BINGO grid for an activity to help your students review any skill or concept. This is adapatable to many age groups and topics.
Use a pumpkin stamp or stickers to show which
In order to get students to use good math vocabulary and to help students verbalize how they "do math," Math Talks have shown to be very effective. These are simple problems that students work mentally. Then they share their method with the class.
Challenge your students to "do the math" that results in the numbers 1 - 90, but using only four-fours with operational symbols in between. The problems are set up for you in chart form for ease of reference. This is a great enrichment activity for
Using simple arithmetic as well as simple Algebra concepts, students will be given 10 clues to lead them to the secret number, shown on screen after clue #10. This activity requires reasoning and number sense in an entertaining way. It can be used
These problems prompt students to use deductive reasoning, guess and check, and process of elimination – all valuable logic tools. They are designed for students to work alone or in pairs due to their complexity.
They can be given as enrichment as
From a chart of slopes and side lengths, can your students decipher which quadrilateral has been graphed? This activity works backwards from traditional coordinate geometry, where the student graphs the quadrilateral and then lists the slopes and
This PowerPoint gives a framework for open-ended questions. You will see examples, a list of suggestions on when to use them, and a matrix on how to create your own. These questions will deepen the understanding of your students, when used on a