1. Think Dot
Choice Boards
for
Second Grade

2. Think Dot Choice Board M2N1abc
Put number cards 0-9 in a bag. Pull out four cards and put them in order from least to greatest to make a four digit number. Represent the 4 digit number with pictures, numbers, and words. Repeat.
Using pictures, numbers and words, write/illustrate an explanation to a first grader about the difference between the numbers, 10,100, and 1000.
Put number cards 0-9 in a bag. Pull out two cards and create a two digit number with the cards. Put cards back and make a three digit number. Using pictures, numbers, and words, explain how these numbers differ in value.
Pretend you have ten dollars to spend on a book order. Pick out two books and using pictures, numbers, and words, show how much you spent and how much change you have left.
Put number cards 0-9 in a bag. Pull out four cards and put them in order from greatest to least and make a four digit number. Represent the 4 digit number with pictures, numbers, and words.
Look at a grocery ad. Buy ten different items. Using pictures, numbers, and words show how much you spent and how much change you will get from a hundred dollar bill.

3. Think Dot Choice Board M2N2abcde
Make a set of two digit cards from Put in a bag and choose two cards. Make an addition and subtraction problem using the two cards. Write about what you noticed about the numbers.
Make a set of I have/ Who has cards for two digit number addition using benchmark numbers. (For example, Who has 3 tens and 4 ones plus 6 tens and 5 ones? Answer: I have 9 ten and 9 ones.)
Using pictures, numbers, and words, draw a web to explain the commutative property.
Using pictures, numbers, and words, draw a web to explain the associative
property.
Make a list of addition and subtraction tricks you could use to teach a first grader addition and subtraction facts.
Using pictures, numbers and words, make a tree diagram to explain the commutative, associative, and identity property for a number between 100 and 1000.

4. Think Dot Choice Board M2N3abcd
Make two sets of array cards to teach someone one of the multiplication tables. Write the multiplication facts on the back of one set and on the other set write the repeated addition fact. Write about how it felt to teach multiplication to someone.
Make a multiplication table for 0-9 and teach someone how to use it. Write about at least one thing that you found easy to teach and one thing that was hard to teach.
Make two sets of cards: one with repeated addition and another set with matching multiplication facts. Shuffle the cards and and lay them down so you can’t see the numbers. Play Match Game with a buddy. The player with the most matches wins.
Pretend you found 100 pennies. Make a tree diagram to show how many ways you can share the pennies using addition and multiplication.
Create a shopping list for five different items. Select multiples of each item to buy, tally the cost for each item, and show the total money needed to make the purchase using, pictures, numbers, and words.
Create a division table for a factor. Explain how to use the table using pictures, numbers, and words.

5. Think Dot Choice Board M2N4ab
Using pictures, numbers, and/or words, make a set of cards showing these fractional parts: thirds, sixths, eighths, and tenths. Shuffle cards and the player with the biggest fractional part wins the round. The person with the greatest number of matches wins.
Cut out six circles and cut each circle into different fractional parts. Glue the circle pieces back together. Write a math sentence for each circle using pictures, numbers, and words.
Write a word problem about a pizza you would like to make and share with at least six friends. Use at least three different ingredients and explain what fractional part each friend would get and what topping they would get on their slice of pizza.
Using a variety of shapes, cut apart into fractional pieces showing thirds, sixths, eighths, and tenths. Label each section. Create a picture using these fraction pieces.
Write an acrostic using the word “Fraction” listing words that describe fractions or fractional parts. Illustrate your acrostic.
Pretend you found twenty-four dollars. Explain how you might spend some of it using fractional part terms. If you have any money left, explain the change in fractional parts.

6. Think Dot Choice Board M2N5ab
Write ten addition and subtraction sentences, on cards using boxes to represent the missing values and use the equal, greater than, and less than signs to indicate relationships. Show cards to a buddy to see if he/she can guess a number that could go in the box that makes the math statement true.
Using pictures, numbers, and words, write and solve a multi-step word problem that includes addition and subtraction.
Write ten multiplication and division sentences, on cards using boxes to represent the missing values and the equal, greater than, and less than signs to indicate relationships. Show cards to a buddy to see if he/she can guess a number that could go in the box that makes the math statement true.
Using pictures, numbers, and words, write and solve a multi-step word problem that includes multiplication and division.
Make a tree diagram that shows how the equal sign, greater than sign, and less than sign can be used in addition, subtraction, multiplication and division.
Write a story, poem, or song to help someone learn the difference between the signs used in math sentences.

7. Think Dot Choice Board M2M1abc
Measure five items in your desk using a ruler. Make a three way T chart showing the name of item, measurement in inches and measurement in centimeters. Write a statement about your findings.
Measure five items longer than your desk, using a yard stick and metric tape. Make a three way T-chart showing name of the item, measurement in feet or yards, and metric measurement.
Find five items. Make a T-chart. Write your estimate in the first column and the actual measurement in the second column. Self-reflect and write a statement about your estimation skills.
Pick one object to measure. Measure the object using at least three different measuring tools. Using pictures, numbers, and words, explain what you found out.
Pretend you are a carpenter and have to make a bookcase. Using pictures, numbers, and words, write the order of the steps you would take in order to make the bookcase.
Make a math glossary/picture dictionary for a first grader showing the different tools that can be used to measure things.

8. Think Dot Choice Board M2M2
Make an analog clock. Set a timer and record how long it takes to teach someone how to tell time using five minute intervals.
Set a timer for five minutes. Start writing your multiplication facts. When the timer goes off, count how many facts you wrote. Try it again. Did you beat your first score? Explain.
Make a time chart to show what you do during the school day. Write a number sentence to show how many hours each day has, how any hours you spend at school, and how many hours you spend at home/other places.
Using pictures, numbers, and words, make a math sentence. Start with the time you got up from bed this morning and predict the time you will go to bed. Figure out how many hours and minutes you will be awake and how many hours you will sleep.
If days were longer than 24 hours, write about what you would like to do with your extra time. If days were less than 24 hours write about what you would cut out from your schedule.
Research different ways that time has been kept in the past and is tracked now. Make a web using pictures, numbers, and words to share some of these ways.

9. Think Dot Choice Board M2M3
Make a thermometer from paper showing the Fahrenheit scale in five degree intervals. Compare it to a real thermometer. Make a Venn diagram to compare the two thermometers.
Write a cinquain (five line poem: title, two describing words, three “ing” words, sentence about subject, and title/subject) describing thermometers and explaining how they are used.
Fill a clear cup and red cup with water. Let it stand in the sun for 4-6 hours. Estimate the temperature of the water in each cup. Measure the temperature using a thermometer. Using pictures, numbers, and words, write about what you learned.
Pretend a thermometer can talk. Write about what a thermometer might say and how it might feel when the temperature outside is over 100 degrees Fahrenheit.
Make a bar graph to show how the temperature changes in a day or a week. Write about what you observed.
Make a 4 corner word diagram to define “temperature” by identifying seasons, seasonal temperatures, and illustrating how you should dress for each season, based on the range of temperatures for each season.

10. Think Dot Choice Board M2G1
Make two sets of cards: one with pictures and the other with words for triangles, squares, rectangles, trapezoids, quadrilaterals, pentagons, hexagons, and irregular polygonal shapes. Shuffle and match pictures with words.
Make a four way chart. Write down the names of five plane figures, record the number of edges, vertices, and size of angle for each plane figure.
Using a protractor, create five irregular polygonal shapes and record the number of edges, the number of vertices, and the size of angle for each irregular polygonal.
Using pictures, numbers, and words, explain the difference between an irregular polygonal shape and one that is not considered irregular.
Draw three angles as comic strip characters. Using speech bubbles, write what each angle might say to each other in a comic strip.
If you were building something, using pictures, numbers, and words, explain why it would be important to know how to measure, recognize shapes, and identify angles.

11. Think Dot Choice Board M2G2ab
Make a pop up riddle book by writing a riddle about a geometric figure. List the number of edges, vertices, shapes of faces, and angles on the front of the book. The figure will pop up when the riddle book is opened.
Using clay, make an assortment of geometric figures for a class museum. Be sure to label each figure and mount it with the figure in decorated shoebox.
Illustrate and write a cinquain (five line poem: title, two describing words, three “ing” words, sentence about subject, and title/subject) describing a geometric figure.
Go on a scavenger hunt looking for at least five plane and five geometric shapes. Make a bar graph to show your findings.
Cut out samples of prisms, cylinders, cones, and spheres in a magazine or newspaper. Create a chart and list the number of faces and how many of each types of faces each figure has.
Make a Venn Diagram to compare and contrast one plane figure and one geometric figure. Be sure to include number of faces and shapes of the angles in each.

12. Think Dot Choice Board M2G3
Select two attribute blocks to compare and contrast. List similarities and differences on a Venn diagram.
Select one two dimensional shape and one three dimensional shape. Compare attributes using t-chart format
Design a word map/model for a two or three dimensional shape emphasizing attributes of the shape chosen.
Make a bar graph using attributes of two and three dimensional figures. Look at five different shapes and graph how many attributes each figure has and show your findings on your graph.
Select a three dimensional shape. List and illustrate at least six objects in the world that have the same attributes as the three dimensional object you chose.
Create a pattern using two and three dimensional shapes. Give the pattern to a friend and ask them to repeat and extend the pattern. Challenge your friend to name the figures as he/she draws each one.