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Wednesday, February 9, 2011

Second Graders Celebrate 100th Day of School

   On Wednesday, January 28th we celebrated our 100th day of school.  From the first day back in August, we have kept track of the number of days in attendance by bundling straws into groups of tens.  It was so exciting to finally reach that magic number of 100.  On that day, we took 10 bundles of 10s and grouped them together to make 100.
            Our learning activities all centered on the concept of 100.  We did several poems and songs as choral readings.  We made 100 piece collages; labeled our artwork pieces, and used them for a story starter in writing.  We enjoyed so many creative ideas.
We tested our math skills by taking a five-minute timed test over 100 addition problems.  Students used their own 100s charts to solve many math riddles and flow charts.  We discovered this chart is valuable tool and can be used in many ways.  Understanding the math concept of probability is not always easy.  To help with this lesson, we flipped a penny 100 times to see which would show up more, heads or tails.  They learned that they had a 50/50 chance of flipping heads or tails.  We also reviewed tally marks and rolled a die 100 times to see which number appeared the most.
            Science and social studies included working together to find where 100 footsteps would lead us in our building.  Then, a report, including drawing a map, was written to share the results.  We made many predictions about the concept of 100 and quickly discovered that “Sometimes 100 is a lot. Sometimes it is not.”  We had different containers filled with 100 ice cubes, and predicted their weight as they melted in different places in the room. We were all amazed that they melted at the same rate, and still weighed the same.  This gave us a good lesson in the properties of water.
Mrs. Schmidt helped us do physical challenges in p.e class to see if we could hop, jump rope, bounce a ball, and other sets of activities 100 times.  We estimated how many we could do in 100 seconds.  Then we had to check our results.  We had so many things to do; we needed more than just one day to complete them all.  Everyone decided it was a great day and a great way to celebrate 100!
By Mrs. Bisenius