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Khan Academy

Khan Academy: Probability and Combinatorics: Combinations

For Students 9th - 10th Standards
Introductory combination problems, like if you have 5 friends and can pick 2 of them to join you on a boat ride, how many different groups of friends could you take with you? Students receive immediate feedback and have the opportunity...
Lesson Plan
Better Lesson

Better Lesson: Counting Collections: 100 Objects

For Teachers 1st Standards
First graders work to count to 100 in this rigorous counting activity. Students create a shape out of their 100 objects for a creative twist. This lesson contains a detailed plan, video explanation, discussion questions based on ability...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: More and Less Handfuls

For Teachers K - 1st Standards
This is a good small group/pairs activity to practice counting. Each student grabs two handfuls of counters and counts them. The student then draws and records the quantity on a student-recording sheet (example included). Student...
Lesson Plan
PBS

Pbs Kids Afterschool Adventure!: Operation: Brown Bag Activity Plan

For Teachers Pre-K - K
It's time for lunch! For this week-long adventure, children will explore numbers and counting in the context of healthy eating. They will learn about the five food groups and create a healthy lunch using foods from each food group. Each...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Finding Equal Groups

For Teachers K - 1st Standards
This activity will test how quickly students can count objects. The teacher will assemble a variety of groups of objects in a few different forms (examples included). Students will race against the clock to sort the groups of objects...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Goody Bags

For Teachers K - 1st Standards
Students will practice counting with this small group activity - great for math stations! The teacher will pre-fill goodie bags with counting objects. Students count the objects, record the number on the post-it note and stick the...