WRDSB Math LRP - G4 T2 Decimal Reasoning & Operations

Grade 4 - Tier 2

B1.7 read, represent, compare, and order decimal tenths, in various contexts
B1.8 round decimal numbers to the nearest whole number, in various contexts
B1.9 describe relationships and show equivalences among fractions and decimal tenths, in various contexts
B2.3 use mental math strategies to multiply whole numbers by 10, 100, and 1000, divide whole numbers by 10, and add and subtract decimal tenths, and explain the strategies used
B2.4 represent and solve problems involving the addition and subtraction of whole numbers that add up to no more than 10 000 and of decimal tenths, using appropriate tools and strategies, including algorithms

🖇 Encourage connections between math concepts by:

connecting forward and backward counting patterns
taking time to name the movement between place value columns as multiplication and division by factors of 10
making proportional number relationships explicit (e.g. 4 000 is half of 8000, 0.3 is one-tenth of 3) by using a variety of concrete representations
integrating decimals and fractions with whole numbers and place value to help students work with them in familiar ways (like they have with whole numbers for years)

Refer to the Ontario Ministry of Education's "Strategies for Mental Math" document for more information on strategies and models.

Concrete Learning Resources Tools:

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