Lesson Plan
Curated OER

SHHH It's a Secret

For Teachers 8th - 10th
Students rewrite word problems using expressions and equations. In this algebra lesson, students use the correct variable to solve and write equations. They use the TI to graph their solution.
Lesson Plan
Curated OER

Algebra: Introduction to Algebraic Expressions

For Teachers 7th
Seventh graders, in an introductory algebra class, code and decode messages using substitution ciphers. Role-playing as mathematicians, they work in groups to decipher several messages, one of which translates to "math is awesome."
Lesson Plan
Curated OER

Clock Arithmetic and Cryptography

For Teachers 2nd - 5th
Pupils perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Pupils apply their multiplication, division, addition, and subtraction skills.
Lesson Plan
Curated OER

Detective Digis and the Computer Caper

For Teachers 6th - 9th
Mathematicians participate in an hands-on activity to investigate the binary number system and write messages in binary code and have classmates decipher the messages. A said video on the topic does not seem to be available, but the...
Lesson Plan
Curated OER

Fraction Message

For Teachers 4th - 5th
Students practice identifying fractional parts represented in pictures and phrases. In this fraction lesson plan, students determine the proportion represented by common time and money phrases such as "3 hours in a day". Students match...
Lesson Plan
Curated OER

Eleven

For Teachers 4th - 7th
Students read an excerpt from the book Eleven by Patricia Reilly Giff. They answer provided questions for group discussion along themes such as family, belonging, and anger. Assignment suggestions included for math, social studies,...
Lesson Plan
Curated OER

Coded Messages

For Teachers 9th - 12th Standards
Students solve matrices by multiplication. In this algebra lesson, students create coded messages and relate it to solving matrices. They multiply and find the inverse of matrices.