2nd Six Weeks

Unit 3: Time to the Hour

Tell time to the hour using analog and digital clocks

Tell time to the hour using analog and digital clocks

• Though this unit tells time to hour only, your child will learn about the minute hand. Practice counting around the clock by 5s with your child.
• Set particular routines such as bedtime, dinner, or homework time to the hour and half hour so your child can notice and tell time to the hour and half hour. For example, challenge your child to consider what time it will be at the end of his one-hour sports practice or half-hour TV show.

Represent numbers up to 20 using objects, pictures, number lines, standard form, and expanded form

• Practice identifying teen numbers as ten and some ones. For example, you say a teen number such as 16. Your child says, “10 and 6.”
• Reinforce place value understanding by breaking apart a teen number (11–19). Call out a teen number (e.g., 15). Your child breaks the number into a ten and some ones (1 ten 5 ones).

Compare/order whole numbers up to 20 using number lines, comparative language, numbers, & symbols (>, <, or =)

• Ask your child to count and compare objects in your home. “Do you have more toy cars or more action figures? More puzzles or more dolls?”

Let your child think of a number between 1 and 20. Try to guess the number by asking him questions. Here's a sample:

• Child: I am thinking of a number between 1 and 10.
• Parent: Is it more than 6?
• Child: No.
• Parent: Is it less than 3?
• Child: No.(The child could be thinking of 4 or 5.)

After you've guessed your child's number, let him guess a number that you're thinking of by asking similar questions.

Represent and solve addition/subtraction word problems up within 20 using concrete and pictorial models and number sentences

• Play “Penny Parts”: Invite your child to organize a group of 6–10 pennies into two groups, placing five pennies in one group. Then ask your child to draw a number bond that shows how the pennies are grouped. For example, if the total is 8 pennies, then the parts are 5 and 3. For an added challenge, separate the pennies two different ways with the same total, and draw a number bond to match each way; for example, 5 and 3, and 4 and 4.
• Invite your child to use toys (such as building blocks), cereal pieces, or pennies to show the parts of a number that make a total. For example, 6 red cubes and 3 blue cubes make 9 cubes. Challenge your child to draw a number bond to match each combination.

Practice addition and subtraction strategies within 20

• Guide your child to practice subtracting 7, 8, and 9 from teen numbers (11–19) by using the take from ten strategy. For example, 13 – 7 can become 10 – 7 + 3.
• Write a false number sentence, such as 10 + 3 = 6 + 6. Challenge your child to make the number sentence true by changing only one number.