Math in 3rd Grade

advertisement
Math Is More
Than Luck
April 9, 2015
Yes, the Right Answer
is Important…
But the Thinking Behind the Math is More
Important.
Common Core Standards

Developing understanding of multiplication
and division and strategies for multiplication
and division within 100

Developing understanding of fractions,
especially unit fractions (fractions with
numerator 1)

Developing understanding of the structure of
rectangular arrays and area

Describing and analyzing two-dimensional
shapes
Standards for Mathematical
Practice

Make sense of problems and persevere in solving
them.

Reason abstractly and quantitatively.

Construct viable arguments and critique the
reasoning of others.

Model with mathematics.

Use appropriate tools strategically.

Attend to precision.

Look for and make use of structure.

Look for and express regularity in repeated
reasoning.
Addition and Subtraction

Change problems – JOIN and SEPARATE

PART PART WHOLE problems

COMPARE Problems
Multiplication and Division

EQUAL GROUPS problems

AREA problems

COMBINATION problems

COMPARISON problems
Multiplication and Division
Within 100

Equal-sized groups, arrays and area models

Finding the unknown factor or product with
single digit factors

Properties of Operations

Using a variety of solutions strategies

Understanding that multiplication and
division are inverse operations
Math Fluency
Is Just as Important as Reading Fluency
Rectangular Arrays and Area

Measure the area of two dimensional by
covering the shape with squares without
gaps or overlaps

Rectangular arrays can be decomposed into
rows and columns

Justify using Multiplication to determine the
area of a rectangle.
Areas of Space
Down on the Farm Project, Designing
Rooms, Map Skills
http://www.harman3w.com/math-mania.html
Math Mania
Use this page on my website as a resource for some
of the best websites
Study Jams, iXL, Kahn Academy, jmathpage, Math
Playground
Fractions

View Unit Fractions as the Building Blocks

Visual Fraction Models to represent parts of
a whole

Size of the fractional part is relative to the
size of the whole (1/2 of one item could be
smaller than 1/6 of another item)

Represent numbers equal to, less than and
greater than one

Using a number line to represent a fraction
of 1
Fractions and Food
Hersheys, Twizzlers, Cookies, Pizza
Two-Dimensional Shapes

Describe, Compare, Analyze properties of
two-dimensional shapes

Compare and classify sides, angles and
other attributes

Express the area of part of a shape as a unit
fraction of the whole
Geometry in Our
World
Keynote Photograph Project, Artwork,
Discovering Attributes with
Manipulatives
Download
Related flashcards
Iranian peoples

32 Cards

Create flashcards