Encoding and Decoding
3,000+ results
Filters
Grade
Subject
Format
Resource type
Standard
Theme
Language
Programs & methods
Supports
Fun with Four Different Mathematical Systems
What a great way to manipulate numbers from four different civilizations and learn about their culture! Students will develop critical thinking skills as they decode our Arabic numbers to learn famous quotes, spell English words using Roman numerals, work with unfamiliar Arabic numbers and practice reading from right to left. Mayan numbers will be the most challenging and interesting. Appropriate for Grades 4-12, higher education, and homeschoolers.
4th - 12th, Higher Education
Other (Math), World History
Interpreting remainders with Thanksgiving flair!
This is a power point to help your kiddos understand how to interpret remainders and how to do it in colorful fun Holiday style! I have also included an extension lesson for GT or Higher level learners or to just push your students to the next level. These ppt are wonderful for ESL and Bilingual learners since the pictures help them decode the process.
2nd - 8th
Other (Math)
MEASUREMENT PUZZLER CHALLENGE
Use this puzzler activity (game) to assess students' knowledge of measurement terminology or use this challenge as a review prior to test-taking. Take a look at my preview and I'm sure that you'll want to purchase this one. Your students will enjoy decoding these puzzles. You can even make an individual or team competition out of this activity. It would be great for gifted and talented students as well. AN ANSWER KEY IS PROVIDED FOR YOUR CONVENIENCE.
4th - 8th
Math Test Prep, Measurement
Snowman STEM Winter Math & Science - Fun After Winter Break Activity -Winter SEL
The perfect after winter break activity is here! The Snowman Stretch Winter STEM Challenge combines winter math, science and STEM in a hands-on snowman activity where kids design, build, and test the tallest snowman or the one with the greatest volume or surface area while applying real math, science, and SEL skills. It's an ideal winter math or STEM activity to smooth the transition coming back to school after Winter Break! ⛄️ Activity OverviewIn this winter STEM activity, kids work
2nd - 8th
Engineering, Other (Math), Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+5
52 STEM Challenges w/ Spring, Summer and End of School Year STEM Activities
Grab your Back to School STEM activities and keep the momentum going with this year-long bundle of 52 STEM activities perfect for team building, Fun Friday activities, and STEM & Science centers. This bundle includes 5 Back to School STEM activities for elementary & middle school to launch your team-building activities the first day of school, plus 47 additional challenges to carry you through holidays, seasons, and anytime STEM learning. Whether you're planning engaging STEM activities for
2nd - 8th
Engineering, Other (Math), Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
Magic Triangle Math Puzzles Extension Gifted & Talented Enrichment
These Magic Triangles Math Puzzles are perfect extension tasks for gifted and talented students, who thrive on daily challenges and are often deep thinkers. With Google slides, PowerPoint and task cards, in both colour and ink saving black and white, they are sure to save teachers lots of time preparing enrichment activities for their gifted and talented students. This resource is also great for early finishers! What's included in this Magic Triangles Maths Puzzle Extension Task:➤ You will re
3rd - 6th
Math, Numbers
Addition and Subtraction Flashcards
Attention primary teachers and parents! These are double-sided flashcards so students can practice their addition and subtraction fact fluency together. Print this double-sided and cut slits in the side. Students will be able to look at the addition side and flip the addend to see the answer on the back. If you want to see them in action, you can check out my Instagram and TikTok @heyitskatieortega and I show how they work in action.
PreK - 5th
Basic Operations
CCSS
K.NBT.A.1
, 1.NBT.C.4
, 1.NBT.C.5
+3
Winter STEM & Science - After Winter Break Activity - Back from Winter Break Fun
The Frozen Fortress Winter STEM Activity is a perfect before or after winter break activity where students design and build a marshmallow fortress wall that meets specific criteria for area and stability, and then test its strength against a snowball fight! ❄️ OverviewIn this engaging Christmas STEM activity, students design and build a fortress using marshmallows (or sugar cubes, paper blocks, or other materials) to meet criteria for area, height, and stability. After construction, they te
2nd - 8th
Engineering, Other (Math), Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
Reindeer Christmas STEM & Science Activity - Fun Winter Break Holiday Party Game
This hands-on reindeer fun Christmas game blends Christmas STEM fun and plenty of laughter! In the Reindeer Relay Challenge, kids design reindeer antlers, explore Christmas science concepts like stability and balance, and compete in a hilarious relay race that’s perfect for December activities, a Christmas party, and winter break fun! 🎯 OverviewIn this engaging, Christmas STEM activity, kids use a criteria and constraints list to design reindeer antlers capable of carrying reindeer food
2nd - 8th
Engineering, Other (Math), Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+6
Summer Fun End of Year Math Activity - Summer School & Summer Camp STEM Activity
Looking for a fun end of year math activity to keep your students engaged through the last day of school? The Pick & Pack Summer STEM challenge is a creative and interactive end of year STEM activity that blends math, critical thinking, and real-world problem-solving. It’s a great fit for end of year math activities, end of year STEM activities, and summer STEM activities that keep kids engaged and learning through the final weeks of school. Perfect for last day of school math activities, last
2nd - 8th
Other (Math)
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
Valentine's Science STEM Activity - Fun Valentine's Day Cupid Bow & Arrow Game
This Valentine’s Day science and STEM activity engages students as they create Cupid's Bow & Arrow. Blending engineering, physics, math, and collaboration into a high-energy Valentine’s Day game, Cupid's Quiver keeps kids learning while they play. Designed for grades 2–8, this Valentine’s STEM challenge works as a science lesson, STEM center, or Valentine’s Day party game. Students design, build, test, and improve a bow-and-arrow (or dart-style) launcher for Cupid’s target practice while coll
2nd - 8th
Engineering, Other (Math), Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
180 Middle School Math Warm-Ups: Full Year of Daily Bell Ringers & Starters
First five minutes? Planned! With this set of daily bellringers, you'll engage your students and get them thinking! Made for 5th, 6th, 7th, or 8th grade math, these open-ended and challenging starters will have your students ready for your lesson. This resource is truly print-and-go, no-prep for the whole school year. Either print the provided student answer sheet for a weekly grade or have students respond on a dry-erase board or paper. Help your students make connections by using this resour
5th - 8th
Math
CCSS
7.SP.A.2
, 6.NS.B.4
, 6.EE.A.2c
+7
Math Project-Create Own Dream Home-Blueprints and Floor Plan (perimeter & area)
Create blueprints and/or floor plans for your own dream home!!
Your little architects will love dreaming big with this project. Using their imaginations and graph paper, they will create their own blueprints.They will be learning area, measurement and perfecting those problem solving and critical thinking skills. The bonus is they won't even know it because they will be having fun.
This project is very "real life" oriented.
For the younger grades this would be better for the GT students. Or
3rd - 9th
Math
CCSS
3.MD.B.4
, 3.MD.C.5a
, 3.MD.C.6
+4
SPIES! A GATE Adventure 18+ Contact Hours - Challenging and Engaging!
Your students will ask to stay in from recess for this. It is the most popular unit I've taught in 32 years, and it is packed with challenging critical thinking. We imagine students are training at the school for spies: mini survivor challenges, mini crossbows, a jewel heist, footprint mysteries, memory games, cipher disks, case files, messages hidden in gel caps. This unit is STEM and critical thinking at its coolest and finest, and we’ve thrown in reading, speaking and listening, and a social
4th - 7th
Applied Math, Engineering
Also included in: SIMULATIONS Real-World Projects GATE Bundle Gifted
Roll and Cover Math Games | Editable Math Board Games for Centers: Set 1
Engage students with editable math board games and roll and cover math games—perfect for math stations, small groups, and enrichment!Designed for partner work or independent practice, math stations, small groups, and enrichment activities, these low-prep, editable math games make differentiation simple—just customize, print, and play! Looking for my brand new collection? Click here to check out Roll and Cover Math Games: Set 2. Buy the BUNDLE, and Save! Check out Roll and Cover Math Station Gam
2nd - 6th
Math
St. Patrick's Day STEM Leprechaun Trap, Shamrock & Pot of Gold Science Math SEL
These 5 engaging St Patrick’s Day STEM activities go far beyond worksheets or crafts. Kids design, build, test, and revise solutions through hands-on science, math & STEM challenges like building a leprechaun trap, protecting a pot of gold, and exploring shamrock and four leaf clover probability. Perfect for March STEM centers, St Patrick’s Day STEM games, or classroom celebrations that still protect instructional time. 🍀 What’s Included in This St Patrick’s Day STEM Bundle:✅ Five Themed
2nd - 8th
Engineering, Other (Math), Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
Valentine’s Science & Valentine STEM - Valentine’s Day Kindness Activity Center
Looking for a fun and engaging way to celebrate Valentine’s Day in your classroom? This Valentine STEM activity combines engineering, problem-solving, and teamwork to create the ultimate no-prep Valentine’s Day lesson! Perfect for grades 2–8, the Tower of Love Challenge encourages students to design and build the tallest structure possible using Valentine’s cards or kindness compliment cards. This activity blends creativity with critical thinking, making it ideal for Valentine’s Day centers
2nd - 8th
Engineering, Other (Math), Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
Day Before Winter Break Activities | Christmas SEL, STEM & Science December Fun
Looking for day before winter break activities that combine Christmas SEL, science, STEM and math? This engaging Winter Break Activities pack is filled with hands-on challenges that help kids collaborate, problem-solve, and practice social-emotional skills through festive engineering fun! These winter STEM challenges double as Christmas SEL activities — perfect for that high-energy the week before break. From Candy Cane Day challenges to snowman and reindeer builds and more, each activity k
2nd - 8th
Other (Math), Science, Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
STEM Kid Engineering and Construction -- Hoop and Launcher Game GATE
Kid-built in a few hours . . . this 7 inch tall basketball hoop can be assembled and re-assembled. We’re not going to toss a ball to make baskets with this project. Oh, no . . . we are making a little catapult to launch marshmallows at the hoop! Oh, yes! Sweet!
Use this building project as a challenging independent study for upper elementary, as a whole-class engineering project, or use it to make math and science applications like percentages, measurements and geometry, action/reaction, tr
3rd - 6th
Applied Math, Engineering
FREE Gifted & Talented Challenge Puzzles Math ELA Early Finishers Activities
Great first day of school activities! 12 daily challenge puzzles that are perfect extension activities for gifted and talented students. Gifted and talented students thrive on daily challenge, and are often deep thinkers. With Google Slides, powerpoint and task cards in both colour and ink saving black and white they are sure to save teacher lots of time preparing enrichment activities for their gifted and talented students. Great for early finishers activities! If you and your students enjoyed
2nd - 6th
Algebra, Basic Operations, Writing
St Patrick’s Day STEM Math Game – Four Leaf Clover & Shamrock Leprechaun Math
This St. Patrick’s Day math game & STEM activity blends four leaf clover probability, shamrock math, and leprechaun math into an engaging, classroom-ready challenge. In this St Patrick’s Day STEM math game, kids design, build, and test a four leaf clover flying disc while exploring probability through hands-on experimentation and an optional St. Patrick’s Day game connected to a pot of gold theme. This activity makes abstract math concepts concrete, interactive, and fun. Perfect for St. P
2nd - 8th
Engineering, Other (Math), Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
Lines of Symmetry 4th Grade Angles, Shapes, Geometry Bell Ringers & Number Talks
These 4th grade geometry number talks will help gifted and talented students warm up with math problems of the day! Project the paperless journal prompts on the board for morning work. Students will understand and apply their thinking as they talk about math, draw models, write their own problems and find multiple answers to open-ended questions. They can practice identifying angles, measuring angles, drawing lines of symmetry, and classifying shapes. There are so many ways to use this resource!
4th - 5th
Geometry, Math, Measurement
CCSS
4.MD.C.5
, 4.MD.C.5a
, 4.MD.C.5b
+7
32 BUMP Math Games - Applications & Reasoning - Grade 5 No Prep Review
Let’s BUMP the other teams to score points!BUMP is a No Prep Math game where students bump other teams off the platform to score points based on how quickly they answered the questions correctly! The game is playable with the whole class together, or you can play it as small groups. There are 20 questions and the answers are included. This bundle version is Elementary Math, Grade 5, Applications & Reasoning. These are digital resources, no printouts required. All questions and answers use text
4th - 5th
Arithmetic, Basic Operations, Math Test Prep
32 BIG UNFAIR Math Games - Applications & Reasoning - Grade 5 No Prep Review
This game is UNFAIR and the kids love it! 8 teams answer every question!The Big Unfair Game is a No Prep Math review game where students earn points for answering questions, but the points can be positive or negative! The goal is to have the score the closest to zero at the end of the game.The game is playable with the whole class together, or you can play it as small groups. All questions and answers are included. This bundle version is Elementary School Math, Grade 5, Applications & Reasoning
4th - 6th
Applied Math, Math Test Prep, Measurement
Showing 1-24 of 3,000+ results
TPT is the largest marketplace for PreK-12 resources, powered by a community of educators.
IXL family of brands