Second Grade, Math, Set Four

• Numeration
• We took turns using the decahedron to make four-digit numbers, then we secretly wrote the number down. We said the number aloud to the other player and they wrote the number. Then we compared to see if what we had written was the same.
• Number Theory
• We played games on-line to review ordinals. Here is a website that has a list of games to practice ordinals.
• Rounding - at the grocery store (we just bought seven items) we rounded the cost of each item to the nearest dollar and then added them up. We got an estimate of $15. The actual amount was $16.08.
• Another day we played a game on-line for practice rounding to the nearest 10.
• Comparing - we each drew four UNO cards and made the largest number we could. Then K. put in the appropriate sign < or >.
• Counting
• We counted to 1,000 by 100's
• We counted to 500 by 10's
• We counted from 1 to 500 by 1's -- using the UNO cards like we did in Set Two
• Addition / Subtraction
• Fact Families - we practice 1/3 of them three times a week
• I printed out an addition and a subtraction worksheet from WorksheetWorks.com. I chose options that would challenge K., without frustrating her. We took the worksheet and sidewalk chalk outside and worked the first six problems on the driveway. The rest of the problems we will save for other times. One day we did addition, and another day subtraction.
• I printed an addition and a subtraction worksheet of word problems. Choosing options that would challenge K., but not frustrate her. There were six problems on each page. We worked one sheet a day. We drew pictures and/or wrote out the equations as needed, but mostly she wanted to solve them in her head.
• We read the book Lights Out by Lucille Recht Penner -- this is a story of a girl who wants to be the last one in her neighborhood to turn her light out. Across the street is an apartment building with 30 windows. She has to subtract numbers as people turn their lights out. K. really liked this book, and has read it to herself a few times. This book is part of the Math Matters series.
• Multiplication with Marvelous Multiplication
• We reviewed that 1 is the identity element
• We worked out the 2 times tables using ten pairs of socks
• We played Cover-Up! on page 49
• Materials: two playing cards with the numbers 1 - 36 in order (6 rows of 6), dominoes (sixes), pennies
• We took turns turning over a domino and solving the problem. A domino that had the dots for 2 and 4 would be the equation 2 x 4 and that player would solve and cover the 8 on their card.
• If you turn over a double, that is a wild, and you can cover any number. It is necessary to play this way or some numbers (like 7, 11, 21, etc) wouldn't be able to be covered.
• The first person to get 6 in a row wins.
• We played Don't Skip This Activity on page 13 (well, a variation of it)
• I set out three cans and thirty beads.
• I asked K. to put an equal number of beads in each can. (They make a great noise when you drop them in, so that was fun for her.)
• Then we counted how many beads were in each can and wrote the equation 3 x 10 = 30 (3 sets of 10 is 30).
• We dumped out all the beads. I took away three and had her separate the beads into the cans, etc.
• Division with Dazzling Division
• We used 30 paper clips and divided them by 1, 2, 3, 4, and 5.
• K wanted to play with a magnet, so I counted out the 30 clips and then asked her, "If you had 3 magnets, how many clips would each magnet get?" We separated the clips into groups to find the answer.
• We played Fun One! on page 17
• I had K. get out a stack of 10 books.
• I put one of the books on the table. I said, "Here is one book, if there is one student, how many books would he get?" Answer: One
• Then I wrote the equation 1 ÷ 1 = 1
• We continued through all 10 books this way. Two books and one student, three books and one student . . .
• Statistics
• We read and talked about pages 10 - 13 of the book Statistics by Jane Jonas Srivastava, ending with the pictograph
• The following two days we read and did the activities in the book, Pictograph by Vijaya Khisty Bodach. I had made the forms for the pictographs ahead of time.
• The fourth day we looked at the pie graph on page 14 of Statistics.
• The fourth and fifth days we read and did the activities in the book, Pie Graphs by Vijaya Khisty Bodach. I had made the pie graph forms ahead of time.
• Fractions, Geometry, Estimation, Measurement
• One day we completed a worksheet that asked for the best estimate. Example: The amount to water the lawn: 32 gallons or 32 fluid ounces
• One day we compared fractions with common denominators and the next day we compared fractions with common numerators.
• We played Shape Lotto.
• To practice area and perimeter, I found a website that had house floor plans, and I printed one on graph paper. Then we figured out the area and/or perimeter of a few rooms.
• I also read the book, Sam's Sneaker Squares by Nat Gabriel from the Math Matters series.