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    Create a body map, and then use directional and positional words to describe characteristics.
    Lesson Plan
    Grades: Pre K to 2nd
    Measurement & Data
    Geometry
    Represent and interpret data.
    Measure and estimate lengths in standard units.
    Measure lengths indirectly and by iterating length units.
    Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).
    Describe and compare measurable attributes.
    K.MD.A.1, K.MD.A.2, K.G.A.1, 1.MD.A.1, 1.MD.A.2, 2.MD.A.1, 2.MD.A.4, 2.MD.D.9
    Find one more than a number.
    Lesson Plan
    Grades: PreK to 2nd, Pre K to 2nd
    Number & Operations
    Algebraic Thinking
    Counting & Cardinality
    Use place value understanding and properties of operations to add and subtract.
    Add and subtract within 20.
    Understand and apply properties of operations and the relationship between addition and subtraction.
    Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
    Count to tell the number of objects.
    Know number names and the count sequence.
    K.CC.A.2, K.CC.B.4c, K.OA.A.5, 1.OA.B.4, 1.OA.C.5, 1.OA.C.6, 1.NBT.C.4, 2.OA.B.2, 2.NBT.B.5, 2.NBT.B.6, 2.NBT.B.7, 2.NBT.B.9
    Describe graphs using appropriate vocabulary, and develop skills in posing and responding to questions about graphs.
    Lesson Plan
    Grades: PreK to 2nd, Pre K to 2nd
    Measurement & Data
    Represent and interpret data.
    Classify objects and count the number of objects in each category.
    K.MD.B.3, 1.MD.C.4, 2.MD.D.10

    Count and subitize by playing a game.

    This activity is available for your phone in the Android Market or Apple App Store.  

    Web Interactive
    Grades: Pre K to 2nd
    Measurement & Data
    Counting & Cardinality
    Relate addition and subtraction to length.
    Count to tell the number of objects.
    Know number names and the count sequence.
    K.CC.A.2, K.CC.B.4a, K.CC.B.4b, K.CC.B.4c, K.CC.B.5, 2.MD.B.6

    Become proficient with numbers and operations by guiding Okta the octopus through a mathematical maze.

    This interactive is also a mobile app. Download it on iTunes or Google Play.

    Web Interactive
    Grades: 3rd to 5th, 6th to 8th, PreK to 2nd, Pre K to 2nd
    Num & Ops Fractions
    The Number System
    Num & Ops Base Ten
    Expression/Equation
    Algebraic Thinking
    Number & Operations
    Apply and extend previous understandings of multiplication and division to multiply and divide fractions.
    Apply and extend previous understandings of operations with fractions to add, subtract, multiply, and divide rational numbers.
    Use equivalent fractions as a strategy to add and subtract fractions.
    Compute fluently with multi-digit numbers and find common factors and multiples.
    Apply and extend previous understandings of multiplication and division to divide fractions by fractions.
    Perform operations with multi-digit whole numbers and with decimals to hundredths.
    Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers.
    Use place value understanding and properties of operations to perform multi-digit arithmetic.
    Solve real-life and mathematical problems using numerical and algebraic expressions and equations.
    Multiply and divide within 100.
    Use place value understanding and properties of operations to add and subtract.
    Add and subtract within 20.
    Understand and apply properties of operations and the relationship between addition and subtraction.
    Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
    K.OA.A.5, 1.OA.B.4, 1.OA.C.6, 1.NBT.C.4, 2.OA.B.2, 2.NBT.B.5, 2.NBT.B.6, 2.NBT.B.7, 2.NBT.B.9, 3.OA.C.7, 3.NBT.A.2, 4.NBT.B.4, 4.NBT.B.5, 5.NF.B.4a, 5.NF.B.4b, 7.NS.A.3, 7.EE.B.3, 4.NBT.B.6, 4.NF.B.3a, 4.NF.B.3d, 5.NBT.B.7, 6.NS.A.1, 6.NS.B.3, 7.NS.A.2a, 5.NF.A.1, 7.NS.A.2c, 5.NF.B.6
    Use operations to discover patterns with integers in magic squares.
    Lesson Plan
    Grades: Pre K to 2nd
    Algebraic Thinking
    Number & Operations
    Add and subtract within 20.
    Use place value understanding and properties of operations to add and subtract.
    Understand and apply properties of operations and the relationship between addition and subtraction.
    Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
    K.OA.A.5, 1.OA.B.4, 1.OA.C.6, 1.NBT.C.4, 2.OA.B.2
    Practice counting and adding by 10s.
    Web Interactive
    Grades: PreK to 2nd, Pre K to 2nd
    Algebraic Thinking
    Number & Operations
    Counting & Cardinality
    Add and subtract within 20.
    Use place value understanding and properties of operations to add and subtract.
    Understand and apply properties of operations and the relationship between addition and subtraction.
    Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
    Count to tell the number of objects.
    Know number names and the count sequence.
    K.CC.A.2, K.CC.B.4a, K.CC.B.4b, K.CC.B.4c, K.CC.B.5, K.OA.A.1, K.OA.A.2, K.OA.A.5, 1.OA.B.4, 1.OA.C.6, 1.NBT.C.4, 2.OA.B.2
    Learn how to estimate the size of a total population by taking samples and using proportions.
    Lesson Plan
    Grades: 6th to 8th, Pre K to 2nd
    Stats & Probability
    Ratio & Proportion
    Measurement & Data
    Use random sampling to draw inferences about a population.
    Analyze proportional relationships and use them to solve real-world and mathematical problems.
    Understand ratio concepts and use ratio reasoning to solve problems.
    Represent and interpret data.
    1.MD.C.4, 6.RP.A.3a, 7.RP.A.3, 7.SP.A.1, 7.SP.A.2
    Observe the properties and classification of objects to build ideas about variables.
    Lesson Plan
    Grades: PreK to 2nd, Pre K to 2nd
    Measurement & Data
    Represent and interpret data.
    Classify objects and count the number of objects in each category.
    K.MD.B.3, 1.MD.C.4

    By yourself or against a friend, match whole numbers, shapes, fractions, or multiplication facts to equivalent representations. Practice with the clear panes or step up the challenge with the windows closed.

    This activity is now available for your phone or tablet in Google Play or App Store.

    Web Interactive
    Grades: 3rd to 5th, Pre K to 2nd, PreK to 2nd
    Num & Ops Fractions
    Measurement & Data
    Geometry
    Algebraic Thinking
    Num & Ops Base Ten
    Number & Operations
    Apply and extend previous understandings of multiplication and division to multiply and divide fractions.
    Geometric measurement: understand concepts of area and relate area to multiplication and to addition.
    Reason with shapes and their attributes.
    Work with equal groups of objects to gain foundations for multiplication.
    Classify two-dimensional figures into categories based on their properties.
    Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers.
    Use place value understanding and properties of operations to perform multi-digit arithmetic.
    Generalize place value understanding for multi-digit whole numbers.
    Develop understanding of fractions as numbers.
    Multiply and divide within 100.
    Understand place value.
    Analyze, compare, create, and compose shapes.
    Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).
    K.G.A.2, K.G.B.4, 2.NBT.A.3, 2.G.A.1, 3.OA.C.7, 3.NF.A.1, 3.NF.A.3c, 3.G.A.2, 4.NBT.A.2, 4.NBT.B.5, 4.NF.B.4a, 5.G.B.3, 5.G.B.4, 1.G.A.3, 2.OA.C.4, 2.G.A.2, 2.G.A.3, 3.MD.C.7b, 5.NF.B.3
    Design a pattern using geometric shapes.
    Web Interactive
    Grades: 3rd to 5th, PreK to 2nd, Pre K to 2nd
    Geometry
    Algebraic Thinking
    Classify two-dimensional figures into categories based on their properties.
    Generate and analyze patterns.
    Reason with shapes and their attributes.
    Analyze, compare, create, and compose shapes.
    Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).
    K.G.A.2, K.G.B.4, K.G.B.6, 1.G.A.2, 2.G.A.1, 4.OA.C.5, 5.G.B.4
    Draw, color, paste, slice, rotate, reflect, expand, and contract various shapes.
    Grades: 6th to 8th, 3rd to 5th, PreK to 2nd, Pre K to 2nd
    Geometry
    Draw construct, and describe geometrical figures and describe the relationships between them.
    Reason with shapes and their attributes.
    Analyze, compare, create, and compose shapes.
    K.G.B.4, K.G.B.5, K.G.B.6, 1.G.A.1, 1.G.A.2, 2.G.A.1, 7.G.A.2
    Students explore sets of 19 and 20. They count up to 20, construct and decompose sets up to 20, and record the decompositions.
    Grades: PreK to 2nd, Pre K to 2nd
    Number & Operations
    Algebraic Thinking
    Counting & Cardinality
    Extend the counting sequence.
    Work with numbers 11-19 to gain foundations for place value.
    Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
    Count to tell the number of objects.
    Know number names and the count sequence.
    K.CC.A.1, K.CC.A.2, K.CC.B.4a, K.CC.B.4b, K.CC.B.4c, K.CC.B.5, K.OA.A.3, K.OA.A.4, K.NBT.A.1, 1.NBT.A.1
    Puzzles provide excellent opportunities for students to apply spatial relationships in an entertaining and meaningful way. In the first part of this lesson, the students use concrete materials to develop the skills needed to work with interactive Tangram puzzles in the second part of the lesson. The students also further develop their understanding of spatial relationships and develop problem-solving skills.
    Grades: Pre K to 2nd
    Geometry
    Reason with shapes and their attributes.
    Analyze, compare, create, and compose shapes.
    Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).
    K.G.A.1, K.G.A.2, K.G.B.4, 2.G.A.1
    Explore the different addend pairs, and play a game to apply your understanding.
    Lesson Plan
    Grades: Pre K to 2nd
    Number & Operations
    Algebraic Thinking
    Counting & Cardinality
    Use place value understanding and properties of operations to add and subtract.
    Add and subtract within 20.
    Work with addition and subtraction equations.
    Understand and apply properties of operations and the relationship between addition and subtraction.
    Work with numbers 11-19 to gain foundations for place value.
    Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
    Count to tell the number of objects.
    K.CC.B.4a, K.CC.B.4b, K.CC.B.5, K.OA.A.1, K.OA.A.2, K.OA.A.3, K.OA.A.4, K.OA.A.5, K.NBT.A.1, 1.OA.B.4, 1.OA.C.6, 1.OA.D.8, 1.NBT.C.4, 2.OA.B.2, 2.NBT.B.7
    Use yarn to measure and compare lengths such as arm span and height.
    Lesson Plan
    Grades: Pre K to 2nd
    Measurement & Data
    Represent and interpret data.
    Measure and estimate lengths in standard units.
    Measure lengths indirectly and by iterating length units.
    Describe and compare measurable attributes.
    K.MD.A.1, K.MD.A.2, 1.MD.A.1, 1.MD.A.2, 1.MD.C.4, 2.MD.A.1, 2.MD.A.4, 2.MD.D.9
    Practice counting and adding by 5s.
    Web Interactive
    Grades: PreK to 2nd, Pre K to 2nd
    Algebraic Thinking
    Number & Operations
    Counting & Cardinality
    Add and subtract within 20.
    Use place value understanding and properties of operations to add and subtract.
    Understand and apply properties of operations and the relationship between addition and subtraction.
    Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
    Count to tell the number of objects.
    Know number names and the count sequence.
    K.CC.A.2, K.CC.B.4a, K.CC.B.4b, K.CC.B.4c, K.CC.B.5, K.OA.A.1, K.OA.A.2, K.OA.A.5, 1.OA.B.4, 1.OA.C.6, 1.NBT.C.4, 2.OA.B.2
    Create customized activity sheets for your classroom.
    Web Interactive
    Grades: High School, 6th to 8th, 3rd to 5th, PreK to 2nd, 9th to 12th, Pre K to 2nd
    Functions
    Geometry
    The Number System
    Num & Ops Fractions
    Measurement & Data
    Linear, Quadratic, and Exponential Models
    Use functions to model relationships between quantities.
    Solve real-world and mathematical problems involving area, surface area, and volume.
    Apply and extend previous understandings of numbers to the system of rational numbers.
    Graph points on the coordinate plane to solve real-world and mathematical problems.
    Develop understanding of fractions as numbers.
    Relate addition and subtraction to length.
    Analyze, compare, create, and compose shapes.
    Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).
    K.G.A.2, K.G.B.4, 2.MD.B.6, 3.NF.A.2a, 3.NF.A.2b, 5.G.A.1, 6.NS.C.6c, 6.NS.C.7a, 6.G.A.4, 8.F.B.5, HSF-LE.A.1b
    Use base ten blocks to construct two- and three-digit numbers on a place value board. Then, play a game using base ten blocks to model numbers up to 100.
    Lesson Plan
    Grades: PreK to 2nd, Pre K to 2nd
    Number & Operations
    Algebraic Thinking
    Use place value understanding and properties of operations to add and subtract.
    Understand place value.
    Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
    K.OA.A.1, K.OA.A.2, 1.NBT.B.2a, 1.NBT.B.2b, 1.NBT.B.2c, 1.NBT.C.4, 2.NBT.A.1a, 2.NBT.B.5, 2.NBT.B.6, 2.NBT.B.7
    Students use bean sticks, connecting cubes, and ten frames to construct sets of 11 and 12, record them, and compare them.
    Grades: PreK to 2nd, Pre K to 2nd
    Number & Operations
    Algebraic Thinking
    Counting & Cardinality
    Extend the counting sequence.
    Work with numbers 11-19 to gain foundations for place value.
    Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
    Count to tell the number of objects.
    Know number names and the count sequence.
    K.CC.A.1, K.CC.A.2, K.CC.B.4a, K.CC.B.4b, K.CC.B.4c, K.CC.B.5, K.OA.A.3, K.OA.A.4, K.NBT.A.1, 1.NBT.A.1
    1 - 20 of 54 results
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