Here is an article about 20 hundreds Chart Activities to Teach Counting, Number Sense, and More:

1. Counting to 100: Start by having the students count aloud as they point to each number on the hundreds chart. This will help them develop number recognition and counting skills.

2. Skip counting by 2s: Challenge the students to skip count by twos as they point to the numbers on the chart. This activity helps them understand the concept of even numbers.

3. Skip counting by 5s: Similar to skip counting by twos, this activity focuses on counting by fives. Students can chant the numbers aloud as they point to them on the chart.

4. Skip counting by 10s: Introduce the concept of counting by tens by having the students skip count and point to the numbers accordingly.

5. Identifying patterns: Encourage students to identify patterns on the hundreds chart. They can look for horizontal, vertical, or diagonal patterns and explain the rule behind each pattern.

6. Number sense puzzles: Create puzzles using small numbers on a hundreds chart. Students have to fill in missing numbers or complete a sequence to solve the puzzle.

7. Comparing numbers: Have students practice comparing numbers by asking them questions like “Is 57 greater than or less than 62?” They can use the hundreds chart to visualize and find the answer.

8. Addition and subtraction: Use the hundreds chart to teach basic addition and subtraction. Students can start at a given number and add or subtract a certain amount to find the answer.

9. Odd and even numbers: Ask students to identify odd and even numbers on the hundreds chart. They can color-code the numbers or circle them accordingly.

10. Finding number patterns: Challenge students to find number patterns on the hundreds chart by adding or subtracting a consistent number. For example, “What happens when you add 10 to each number?”

11. Finding multiples: Introduce the concept of multiples by asking students to find numbers that are multiples of a given number. They can use the hundreds chart as a visual aid.

12. Greater than or less than: Have students compare two numbers on the hundreds chart and determine which is greater or less than the other.

13. Counting backwards: Practice counting backwards from 100 to 1 using the hundreds chart. Students can point to each number as they count.

14. Missing numbers: Create the challenge of filling in missing numbers on a partially completed hundreds chart. Students can use their counting and number recognition skills to complete the chart.

15. Number bonds: Use the hundreds chart to teach number bonds. Students can find pairs of numbers that add up to 10, 20, or any other given number.

16. Place value: Explore place value concepts using the hundreds chart. Students can identify the value of each digit or practice decomposing numbers.

17. Multiplication and division: Introduce basic multiplication and division using the hundreds chart. Students can count and group numbers to solve simple equations.

18. Guess the number: Play a guessing game by giving students clues about a number on the hundreds chart. They have to guess the correct number based on the clues given.

19. Number lines: Create number lines using the hundreds chart to help students understand number relationships and locate numbers in between given values.

20. Word problems: Use the hundreds chart to solve word problems involving counting, addition, and subtraction. Students can use the chart as a visual aid to assist them in solving the problems.

These activities make use of the hundreds chart to teach various math concepts and promote number sense in students.