- Represent decimals in several ways
- Compare and convert fractions and decimals
- Add and subtract with decimalsmm
- Multiply and divide with decimals

Resources:

Decimal
grids in SMART Notebook

Decimal grids in Microsoft Word

Bassarear discusses Decimals in section 5.4

Decimal grids in Microsoft Word

Bassarear discusses Decimals in section 5.4

Representing and comparing of decimals

Read:

In
D2L->Content->Readings->Representing Decimals, read the
article "Investigating Students' Conceptual Understanding of Decimal
Fractions Using Multiple Representations"

Watch: Decimals and place value.

Misconceptions and representations part 1; part 2.

Decimals in metric measurements.

Decimals on number lines.

Misconceptions and representations part 1; part 2.

Decimals in metric measurements.

Decimals on number lines.

Assignment due Aug 10:

Assn 67: Draw or otherwise produce
diagrams
showing each of these decimals

2. 0.4

3. 0.005

a. in a grid

b. with base 10 blocks

c. on a number line.

d. tell what length in centimeters or millimeters each represents if 1 means 1 m. (tell, don't draw)

1. 0.68b. with base 10 blocks

c. on a number line.

d. tell what length in centimeters or millimeters each represents if 1 means 1 m. (tell, don't draw)

(For example, in #1d, you should do:
0.68m=?cm or 0.68m=?mm--choose which ever of cm or mm makes the
most sense to use for the given amount)

2. 0.4

3. 0.005

Fractions and decimals

Read:

D2L->Content->Readings->Relating
Fractions
and
Decimals

Watch:Assignment

Operations on decimals:

Read:

Watch:

Assignment:

Watch:

Explaining
addition (and an extra
example--very optional)

The difficulties of multiplication

An invented algorithm part 1, part 2.

Decimal multiplication with arrays part 1, part 2.

Things to know before you start dividing decimals: ways to handle remainders; significant digits.

Dividing decimals part 1, part 2;

And an optional ramble on remainders and dividing decimals.

The difficulties of multiplication

An invented algorithm part 1, part 2.

Decimal multiplication with arrays part 1, part 2.

Things to know before you start dividing decimals: ways to handle remainders; significant digits.

Dividing decimals part 1, part 2;

And an optional ramble on remainders and dividing decimals.

Assignment:

Assn 69:
Decimal
operations. Aug 13