We are Mathematicians. – Ms. Chan's Class Blog
 

We are Mathematicians.

Term One

Patterns – Students are expected to know the following:

Big Idea:

  • Regular increases and decreases in patterns can be identified and used to make generalizations.

Students are expected to know the following:

  • increasing and decreasing patterns using words and numbers, based on concrete experiences
    • creating patterns using concrete, pictorial, and numerical representations
    • representing increasing and decreasing patterns in multiple ways
    • generalizing what makes the pattern increase or decrease (e.g., doubling, adding 2)
  • pattern rules
    • from a concrete pattern, describing the pattern rule using words and numbers
    • predictability in song rhythm and patterns
    • Share examples of local First Peoples art with the class, and ask students to notice patterns in the artwork.

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Fraction Concepts

Big Ideas:

  • Fractions are a type of number that can represent quantities.

Students are expected to know the following:

  • Fractions are numbers that represent an amount or quantity.
  • Fractions can represent parts of a region, set, or linear model.
  • Fraction parts are equal shares or equal-sized portions of a whole or unit.
  • Provide opportunities to explore and create fractions with concrete materials.
  • recording pictorial representations of fraction models and connecting to symbolic notation
  • equal partitioning
  • equal sharing, pole ratios as visual parts, medicine wheel, seasons

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Data analysis: one-to-one correspondence with bar graphs, pictographs, charts, and tables

  • collecting data, creating a graph, and describing, comparing, and discussing the results
  • choosing a suitable representation

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Number Concepts – Students are expected to know the following:

Big Ideas:

  • Numbers to 1000 represent quantities that can be decomposed into 100s, 10s and 1s.

Number Concepts to 1000

  • Counting:
    • skip-counting by any number from any starting point, increasing and decreasing (i.e., forward and backward)
    • skip-counting is related to multiplication
    • investigating place-value based counting patterns (e.g., counting by 10s, 100s; bridging over a century; noticing the role of zero as a placeholder 698, 699, 700, 701; noticing the predictability of our number system)
  • Numbers to 1000 can be arranged and recognized:
    • comparing and ordering numbers
    • estimating large quantities
  • Place value:
    • 100s, 10s, and 1s
    • understanding the relationship between digit places and their values, to 1000 (e.g., the digit 4 in 342 has the value of 40 or 4 tens)
    • understanding the importance of 0 as a place holder (e.g., in the number 408, the zero indicates that there are 0 tens)

Term Two 

Addition and subtraction to 1000

  • using flexible computation strategies, involving taking apart (e.g., decomposing using friendly numbers and compensating) and combining numbers in a variety of ways, regrouping
  • estimating sums and differences of all operations to 1000
  • using addition and subtraction in real-life contexts and problem-based situations
  • whole-class number talks

Addition and subtraction facts to 20 (emerging computational fluency)

  • adding and subtracting of numbers to 20
  • demonstrating fluency with math strategies for addition and subtraction (e.g., decomposing, making and bridging 10, related doubles, and commutative property)
  • Addition and subtraction are related.
  • At the end of Grade 3, most students should be able to recall addition facts to 20.

Construction of 3D objects

  • identifying 3D objects according to the 2D shapes of the faces and the number of edges and vertices (e.g., construction of nets, skeletons)
  • describing the attributes of 3D objects (e.g., faces, edges, vertices)
  • identifying 3D objects by their mathematical terms (e.g., sphere, cube, prism, cone, cylinder)
  • comparing 3D objects (e.g., How are rectangular prisms and cubes the same or different?)
  • understanding the preservation of shape (e.g., the orientation of a shape will not change its properties)
  • jingle dress bells, bentwood box, birch bark baskets, pithouses

Time concepts

  • understanding concepts of time (e.g., second, minute, hour, day, week, month, year)
  • understanding the relationships between units of time
  • Telling time is not expected at this level.
  • estimating time, using environmental references and natural daily/seasonal cycles, temperatures based on weather systems, traditional calendar

Term Three 

Financial literacy — fluency with coins and bills to 100 dollars, and earning and payment

  • counting mixed combinations of coins and bills up to $100:
    • totalling up a set of coins and bills
    • using different combinations of coins and bills to make the same amount
  • understanding that payments can be made in flexible ways (e.g., cash, cheques, credit, electronic transactions, goods and services)
  • understanding that there are different ways of earning money to reach a financial goal (e.g., recycling, holding bake sales, selling items, walking a neighbour’s dog)
  • Using pictures of First Peoples trade items (e.g., dentalium shells, dried fish, or tools when available) with the values indicated on the back, have students play a trading game.

Multiplication and division concepts

  • understanding concepts of multiplication (e.g., groups of, arrays, repeated addition)
  • understanding concepts of division (e.g., sharing, grouping, repeated subtraction)
  • Multiplication and division are related.
  • Provide opportunities for concrete and pictorial representations of multiplication.
  • Use games to develop opportunities for authentic practice of multiplication computations.
  • looking for patterns in numbers, such as in a hundred chart, to further develop understanding of multiplication computation
  • Connect multiplication to skip-counting.
  • Connect multiplication to division and repeated addition.
  • Memorization of facts is not intended for this level.
  • fish drying on rack; sharing of food resources in First Peoples communities

Measurement, using standard units (linear, mass, and capacity)

  • linear measurements, using standard units (e.g., centimetre, metre, kilometre)
  • capacity measurements, using standard units (e.g., millilitre, litre)
  • Introduce concepts of perimeter, area, and circumference (the distance around); use of formula and pi to calculate not intended — the focus is on the concepts.
  • area measurement, using square units (standard and non-standard)
  • mass measurements, using standard units (e.g., gram, kilogram)
  • estimation of measurements, using standard referents (e.g., If this cup holds 100 millilitres, about how much does this jug hold?)

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