Understanding Groups of Ten

This video tutorial for grade 1, module 2, lesson 26, guides students through understanding and practicing teen numbers. It begins with an introduction to the homework, followed by exercises on identifying and writing teen numbers using pictures and hide 0 cards. The tutorial emphasizes visual learning by drawing tens and ones in columns and rows. Students practice with various examples to reinforce their understanding of place value and teen numbers.

What is the first step in the lesson for identifying teen numbers?

• Draw a line through the picture

• Write your name on the paper

• Circle 10 in the picture

• Count all the objects

How do you represent the number 18 using groups of 10?

• Two groups of 10

• One group of 10 and 5 ones

• One group of 10 and 8 ones

• One group of 10 and 10 ones

What is the purpose of using hide 0 cards?

• To hide the numbers

• To count faster

• To draw pictures

• To visualize groups of 10 and ones

How should you draw groups of 10 in this lesson?

• In columns

• In rows

• In squares

• In circles

What is the number 13 made up of?

• One group of 10 and 3 ones

• Two groups of 10

• One group of 10 and 10 ones

• One group of 10 and 5 ones

How many ones are there in the number 17?

• 7 ones

• 2 ones

• 5 ones

• 10 ones

What is the number 16 composed of?

• One group of 10 and 10 ones

• One group of 10 and 5 ones

• Two groups of 10

• One group of 10 and 6 ones

How many groups of 10 are in the number 19?

• Two groups of 10

• Three groups of 10

• No groups of 10

• One group of 10

What is the number 10 made up of?

• Two groups of 10

• One group of 10

• One group of 10 and 10 ones

• One group of 10 and 5 ones

How do you ensure you don't count the same ones twice?

• By drawing a line through them

• By circling the group of 10

• By counting quickly

• By using a calculator