This group of activities helps children explore numbers 11-99. They introduce the concept of teens (ten and some more) and tens (with the suffix -ty meaning more than one ten). As with the other math lessons, we first introduce the child to the quantity alone, and then the numeric symbol alone. We then give the child lots of activities to help them put the quantities and symbols together to help strengthen the association. The children are given lots of opportunities for counting with teens and tens as they practice linear counting (1,2,3) and skip counting (5, 10, 15) using the bead chains.

## At Home Math Activities for Exploring Teens and Tens:

#### Introduction to the Bead Stair Matching Activity ages 4 ½ and up

*Directions**:* Cut out each of the beads from the Bead Stair. Cut out the cards. Match the Bead to the correct number card. Use the control chart to check your work.

#### Introduction to the Bead Stair Coloring Activity ages 4 ½ and up

*Directions**:* Color each bead bar according to the colors of the Montessori beads.

#### Teen Beads Coloring Activity ages 4 ½ and up

*Directions**:* Color each of the Teens according to the colors of the Montessori beads. Use the Control Chart to check your work.

#### Teens Cards Activity ages 4 ½ and up

*Directions**:* Print and cut out the cards. Use one ten card and one unit number card (1-9) to create the teens 11, 12, 13, 14, 15, 16, 17, 18, and 19.

#### Teens Beads and Cards Matching Activity ages 4 ½ and up

*Directions**:* Cut out each of the beads from the Bead Stair. Cut out the cards. Match the Bead to the correct number card. Use the control chart to check your work.

#### How Many Do You See? ages 4 ½ and up

*Directions: *Color the objects and count the number of items in each row. Write the number in the square.

#### Tens Beads and Cards Activity 1 ages 4 ½ and up

*Directions: *Print and cut out the tens beads. Print and cut out the tens cards. Match the Beads with the correct number card.

#### Tens Beads and Cards Activity 2 ages 4 ½ and up

*Directions: *Count the beads and match them with the correct number card.

#### Tens Beads and Cards Activity 3: Making numbers 11-99 ages 4 ½ and up

*Directions: *Print and cut out the beads. Print and cut out the cards. Create a number with the beads and then create the corresponding symbol with the cards.

## At Home Math Activities for Linear and Skip Counting:

### Linear Counting: 10^{2} Chain With Printed Tickets ages 5 and up

*Directions: *Print and cut out the tickets. Place the tickets next to the appropriate bead bar. Cut out the ten square. Place it over the last bead bar of the chain.

### Skip Counting: Squared Chains With Printed Tickets ages 5 and up

*Directions: *Print and cut out the tickets for each chain (1^{2} – 9^{2}). Count each chain. Place the ticket under the appropriate bead.

### Skip Counting Writing Activity ages 5 and up

*Directions: *Count each squared (1^{2} – 10^{2}) chain. Record the number at the end of each bead bar to create the ticket.

### Skip Counting Writing and Coloring Activity ages 5 and up

*Directions: *Color each squared (1^{2} – 10^{2}) chain according to the colors of the bead cabinet. Count each chain. Record the number at the end of each bead bar to create the ticket.

### Skip Counting: Squared and Cubed Chains ages 5 and up

*Directions: *Print and cut out the tickets and squares for each chain pair (for example: 2^{2 }and 2^{3}). Count each chain. Place the ticket under the appropriate bead.

### Fill in the Missing Number ages 5 and up

*Directions: *Read the numbers on the chart. Fill in the numbers that are missing as you count from 1-100.

### Counting from 1-100 ages 5 and up

*Directions: *Write the numbers 1 to 100 in your best handwriting. If desired, continue writing 101-and beyond!

### Fill in the Missing Number ages 5 and up

*Directions: *Read the numbers on the chart. Fill in the numbers that are missing as you count by 2s, 3s, or #1-9.

### Writing ages 5 and up

*Directions: *Write the numbers by 2s, 3s, 4s, or any skip counting variation of your choice.