# Season 4

Write Equations for Numbers 11-19

Using a Rekenrek, work with numbers 11-19, and write equations.

### Write Equations for Numbers 11-19

Add and Subtract 3-Digit Numbers

Add and subtract three-digit numbers with Springling and Minni and Subbi.

### Add and Subtract 3-Digit Numbers

Triangles, Rectangles and Squares

Explore what makes a shape a triangle, a rectangle, or a square.

### Triangles, Rectangles and Squares

Find Differences Between Numbers

Work on partial sums and find the difference between numbers with Springling.

### Find Differences Between Numbers

Numbers 11-19 in different ways

Show numbers 11-19 in different ways using a double ten frame.

### Numbers 11-19 in different ways

Join Mrs. McCartney for a Number Talk with Abracus, then add and subtract tens and hundred

### Add and Subtract 10s or 100s

Measure length using a ruler marked with halves and quarters of an inch with Ms. Askew.

### Measuring with Rulers

We'll sort, describe and create solid shapes, and talk with Abracus about compensation.

### Solid Shapes

Work on the double ten frame with Dotson and Mrs. Gray, then compose numbers 11-19.

### 10-Frames and More

We'll compare numbers and decide to add or subtract with Springling and T-Pops.

### Compare then Add or Subtract

Measuring with Halves or Fourths

Join Ms. Askew for a Fraction Number Talk, then measure length in quarters of an inch.