Unit 4 Overview:

In unit 4 students will explore place value (skip counting, comparing numbers, base ten, number values) with numbers up to 1,000. Using place value to break down larger numbers is a great, quick addition strategy. Ex: 19+24:19=10+9/24=20+4,10+20=30, 9+4=13, 30+13=43.

1. Students will understand that the three digits of a three-digit number represent amounts of hundreds, tens, ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones.

2. Students will read and write numbers to 1000 using base ten numerals, number names and expanded form to justify representations. (2.NBT.A.3)

3. Students will compare two three-digit numbers based on meanings of the hundred, tens, and ones digits, using >, =, and < symbols to record the results of comparisons. (2.NBT.A.4)

4. Students will skip count by 5’s , 10’s, and 100’s,starting at any multiple of 5, 10, and 100, within 1,000 to determine patterns. (2.NBT.A.2)

5. Students will determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s and write an equation to express an even number as a sum of two equal addends. (2.OA.C.3)

6. Students will identify coins (quarters, dimes, nickels, and pennies), applying skip counting strategies to determine the value of a mixed set of coins up to a $1 in real life situations. (2.MD.C.8)

7. Students will use concrete models to construct rectangular arrays using repeated addition to record the equation in expressing the total as a sum of equal addends. (2.OA.C.4)