Students use fraction pieces to model the addition of fractions with like denominators and draw a model to justify their answers.

Students decompose numbers less than or equal to 10 into pairs in more than one way by using objects or drawings, and they will record each decomposition by a drawing or equation (e.g. 5= 2 + 3 and 5 = 4+1).

Students work with a partner and sit opposite one another with a divider between them. Each student takes turns drawing and labeling angles in each space on their grids and give instructions to their partner on how to draw the angles to match the ones on his/her grid. Students use positional language to describe where to place the angles.

Students roll a die and divide circles into the number of equal sections shown on the die. They explain how measuring the first angle helped them to find the measurement of other angles in each circles.

Students are given a scenario and must select three rectangles to show how they could use Jack's strategy of breaking apart a rectangle to find the area of each figure.

Students explore equivalent fractions using a game. Using a deck of cards, students pick a fraction and initial a brick. Play continues until one students has initial 5 rows of bricks.

Students work in small groups to build one 1m by 1m squares using newspaper. The groups combine to construct a cube. The students then fill the cubes with base 10 cubes, longs and flats.

Students work with a partner to build a train using snap cubes of the same color and determine the number of tens and ones they have. Students draw the train to show how they counted the cubes.

Students compare two decimals to hundredths by reasoning about their size, recognize that comparisons are valid only when the two decimals refer to the same whole, and record the results of comparisons with the symbols >, <, or =.

In this activity, students take turns with a partner to turn over number cards in stack and placing that many counters in a cup. Students fill in a table to show how many counters in the cup.

In this activity, students work with a partner to identify numbers on a grid.

Students choose three rectangles and cover them with color tiles. Students record their work explaining how many color tiles they used to partition each rectangle into rows and columns. Lastly, students write an equation to represent the number of color tiles in each row and the total number of squares used to cover each rectangle.

Students use the data in the table to create a bar graph in this interactive resource. Students mouse over the columns on the graph in order to display the data correctly on the bar graph.

In this activity, students work with a partner and place all cards that end in 9 face down on the blue board and all cards that end with 0 face down on th red board. Students take turns selecting a card from the blue board, reading the number name and names the next counting number. Then, students select a card from the red board keeping the cards if they are in counting order and returning them if they are not.

Students design two possible enclosures for a zoo animal with an area of 40 square meters and tell which enclosure they think would be most suitable for the zoo animal students chose.

Students learn to divide by using the partial products strategy, using a 3 digit number divided by a 1 digit number.

Students solve addition and subtraction word problems, and add and subtract within 10, e.g. by using objects or drawings to represent the problem.

Students spin two numbers and write a multiplication sentence, using the doubling and halving strategy to compute the product.

For this activity, students listen to the story, The Enormous Watermelon, and solve a problem using pictures, numbers or words to show how they solved the problem.

Students estimate the quotient of a 3 digit number by a 1 digit number.

Students work with a partner to estimate and measure the weight of a set of small classroom objects and record their findings on a chart.

Students explore multiples using snap cubes and hundreds boards and explain patterns discovered on each hundreds board.

Students work with a partner to cut out different sized open boxes and fill each box with cubes to find the volume.

For this activity, students work with a partner to toss two-colored counters and find two numbers on a grid that equal 10. Students write the addition fact and continue taking turns until all pairs of numbers that equal 10 have been found. Students count to see who recorded the most facts of 10.

Students are given an elapsed time word problem to solve in this interactive resource.

Students read the clock and find the elapsed time based on the question presented in this interactive resource.

Students select three different rectangles and determine the number of color tiles needed to cover them. Students sketch and label the rectangles in order from least to greatest area and complete sentence stems about the rectangles.

Students determine the unknown whole number in an addition or subtraction equation relating to three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8+ ? =11, 5 = ? ? 3, 6+6 = ? Game board templates are provided.

Students work with a partner to build two different rectangular prisms out of centimeter cubes. Students then find the volume of each individual prism, then join the prisms and add the volumes in order to find the total volume of the new prism.

Students demonstrate their understanding of counting and cardinality by playing a game of concentration. After shuffling the number cards and placing them face down, students take turns turning over two cards, one at a time, saying the number on the cards. If the cards match, the students keep the cards. If the cards do not match, the cards are placed face down. The game continues until all matching pairs have been found.

For this activity, students work with a partner to flash and build five frames.

For this activity, students work with a partner to roll a die and identify five frames that have the same amount.

For this activity, students work with a partner to take turns holding up a numeral card and building five frames.

Students draw a picture in order to show the decomposition of a whole using sixths.

Students use geoboards to make a quadrilateral. Students copy their quadrilateral onto geoboard paper and record as many different quadrilaterals as they can and tell how the quadriaterals are alike and different.

Students make a square on a geoboard, draw the square on geoboard paper, and cut it out. Then students make a square that is bigger or smaller than their first square, draw it on geoboard paper, and cut it out. Students continue to see how many different sized squares they can make and draw. Lastly, students paste all of their different sized squares onto a sheet of paper in order from smallest to largest.

Students measure the length of a gummy worm with a ruler. Students stretch the gummy worm as far as he/she can and measure the stretched gummy worm. Students identify the difference in length between the original and stretched gummy worm and record their findings.

Students decompose numbers less than or equal to 10 into pairs in more than one way by using objects or drawings, and they will record each decomposition by a drawing or equation (e.g. 5= 2 + 3 and 5 = 4+1).

Students partner up and take turns guessing each others decimals. Students must read the decimals correctly and match them up with the correct decimal in standard form.

Students interpret the data in a bar graph and use it to answer the questions about the graph in this interactive resource.

For this activity, students work with a partner to discover the number of ways they can make one whole using fraction pieces of the same shape and size.

Students use a deck of cards to make two 5 digit numbers and add the two numbers to make the largest sum possible.

For this activity, students roll a die and use counters to make sets of numbers equal to or greater than the number rolled. Students use pictures, numbers, or words to show their work.

Students take turns with a set of measurement concentration cards to determine if the measures shown on the cards are equivalent. Next, they complete the math sentence. The cards template is provided in the activity.

Students measure classroom objects to the nearest one-eighth of an inch and create a line plot to display the data.

Students looks at three paths and predict which path they believe will be the longest and which will be the shortest. Using rulers, yarn, or string, students measure the length of each path and record their findings.

Students work with a partner to arrange a set of number cards in order and take turns closing their eyes while the partner removes a card. The other student guesses the missing number by saying, "I think ___ is missing because..." The partners continue to take turns to remove a card and guess the missing number.

Students fill in missing numbers on a number grid. It reinforces students' ability to write numbers from 0 to 20.

Students work with a partner to sort containers into three groups according to their prediction of which container holds less than 1 liter, about 1 liter, and more than 1 liter. Students check their predictions by measauring the capacity of each container using metric units.

For this activity, students listen to a story to solve a problem. Students count out 10 mice and place some inside the jar and some outside the jar and use pictures, numbers, or words to show the many ways the ten mice could be arranged.

Students use the strategy of doubling one factor and halving the other factor.

Students multiply a whole number by a fraction or a mixed number and represent the problem using a model.

Students multiply a unit fraction by a whole number using a model, number line, and an equation.

Students solve problems and choose three other two-digit numbers between 10 and 100 multiplying each of them by 10 to the first power, 10 to the second power, and 10 to the third power. Students explain the pattern they notice in the product when multiplying a number by powers of 10.

For this activity, students make three different shapes on a geoboard and selects one to draw on a recording sheet. Students cover their shape and write four clues describing their shape. Students see if a friend can answer their riddle.

Students use a ruler to draw two different quadrilaterals, and then identify, describe, and compare the shapes that they created.

In this activity, students take turns with a partner turning over cards and placing them on a grid in the proper counting sequence. Students explain their thinking and continue taking turns until all spaces on the grid are filled.

For this activity, students and a partner sit opposite one another with a divider between them. Students take turns writing a 3-digit numeral on each space of the grid and give instructions to their partner on how to write a number in each space to match their grid. Students use number names and positional language to describe where to place them. Students remove the divider and check their grids to see if they match.