Klein Concepts

Help your students master Desmos more efficiently with this easy-to-use shortcut reference sheet! Whether they’re graphing functions, typing expressions, or formatting equations, this printable guide puts all the most important keyboard shortcuts right at their fingertips. Perfect for: Any level math classes - upper elementary learning desmos through high school needing the reminder for the various things Desmos does Students new to Desmos Test prep and digital assignments Posting in your Goo

Make angle identification fun and hands-on with this “Kinds of Angles” Cut-and-Paste Sorting Activity! Perfect for interactive notebooks, warm-ups, or review, this printable resource helps students distinguish between acute, right, obtuse, straight, reflex, complete, complementary and supplementary. Reach your IEP/504 students at different levels through visual recognition and reach your Spanish ELL students with the activity in their native language! What’s Included:Cut-and-Paste Activity Page

Need a visual practice of vocabulary? Pick a size and play! 8 different sizes of cards that could be used for Guess Who, Pictionary, the Forehead game and more! In this interactive partner activity, students use clues based on triangle types (by angles and sides) to ask questions, eliminate possibilities, and identify the mystery triangle. This game is a great way to reinforce key geometry concepts while encouraging math talk and strategic thinking. Students will: ✅ Classify triangles by sides

Need a visual practice of vocabulary? Pick a size and play! 8 different sizes of cards that could be used for Guess Who, Pictionary, the Forehead game and more! In this interactive activity, students use the language of probability to ask strategic questions, eliminate options, and make educated guesses—just like the original game, but with a math twist. Perfect for reviewing probability terms and logic, this engaging partner activity helps students ✅ Practice using vocabulary like "likely," "un

Need a visual practice of vocabulary? Pick a size and play! 8 different sizes of cards that could be used for Guess Who, Pictionary, the Forehead game and more! In this interactive activity, students use the language of transformations to ask strategic questions, eliminate options, and make educated guesses—just like the original game, but with a math twist. Perfect for reviewing transformations terms and logic, this engaging partner activity helps students ✅ Practice using vocabulary like "tran

Kick off the school year with Me by the Numbers—a creative, math-flavored twist on the classic “All About Me” activity! This engaging one-pager invites students to describe themselves using only numbers, making it the perfect blend of math review and personal reflection. Great for the first week of school or as a get-to-know-you assignment, this activity helps students: ✅ Practice number sense in a meaningful way ✅ Make personal connections through math ✅ Share fun facts about themselves (like

Start the school year with a fun and personal math twist! My Summer By the Numbers invites students to reflect on their break—using only numbers. Whether it's how many books they read, miles they traveled, or ice cream cones they devoured, this activity blends creativity with number sense in a way that's engaging and classroom-ready. Perfect for the first week of school, this one-pager helps students: ✅ Practice math and estimation in a real-life context ✅ Share personal highlights without the

Challenge your students to think creatively and mathematically with this engaging number puzzle! Using only the digits 2, 0, 2, and 6 exactly once in each expression, students must form equations that equal every number from 1 to 26—using any mathematical operations they choose. What’s Included: 2026 Challenge recording sheet Helpful tips page with examples of operations (exponents, factorials, double factorials, and digit combinations) Space for students to record and revise their expression

Engage your students with this fun and brain-bending math challenge! Using only the digits 2, 0, 2, and 5 exactly once per equation, students must create expressions to represent the numbers 1 through 25 using any mathematical operations. Perfect for: Bell ringers Early finishers Math enrichment End-of-(calendar) year or back-to-school fun Includes a helpful reference guide with operation tips!