Math Test Wednesday: Measurement and Decimals
(tenths grade 4 / hundredths grade 5)

• Metric number line 
• Measuring lengths using cm and mm

Example: Measure the length of the line to the nearest cm and to the nearest mm / draw a line that is 56 mm

• Changing units of length (including lengths with decimals)

Example: 34 cm = ____ m

• Expressing lengths using two units.

Example: 3.08 m = ____ m ____ cm

• Choosing and EXPLAINING the most appropriate unit to measure

Example: What unit would you use to measure the length of the room? Why? Remember to relate the length or distance to something you know.

Explain a situation where you would use millimetres instead of centimetres.

• Multiplying and dividing decimals by 10, 100, 1000

Example: Explain what you would do to change 560 m to km.

• Adding / subtracting decimals (line up the places / decimal)

Example: You have to walk 2.8 km to the Superstore. So far you have walked 1700 m. How many more kilometres do you have left to walk?

• Order decimals from least to greatest or greatest to least

Example: Put the following decimals in order from greatest to least

0.1, 0.09, 1, 0.3

Example: Put the following measurements in order from least to greatest (change to the SAME UNIT  first)

0.9 km, 3000 mm, 120 cm, 2 m

• Represent a decimal in standard, expanded and fractional forms / on a number line / base-ten blocks/ words

2.1             standard form

2 + 0.1      expanded form

two and one tenth    words

2 1/10 or 2 1/10            fraction form (remember to write the fraction bar horizontally)

base ten blocks

number line

   

• Compare decimals

Example: Circle the larger decimal 1.1 or 0.99
Example: Is the decimal closer to 0, 1/2 or 1 on a number line?

Science:
Bring in different materials and a flashlight to explore the properties of materials that are transparent, translucent and opaque.

Example: tin foil, plastic wrap, shopping bag, cloth, sunglasses, wax paper, construction paper, white paper etc. Gather anything you think would be interesting to test from around the house or in the recycling box.