Please review lessons from Module 2. Solve one/two problems on each lesson and/or work for 20 minutes. Also, write down any questions you might have.
Lesson 28: Solve division word problems involving multi-digit division. In this lesson, students are asked to draw pictures to represent: two-step equal groups with number of groups unknown. These problems have multiple steps 1. Draw and use pictures to interpret the information 2. Decide unit conversions for problems 3. Determine to use decimal division and/or multiplication when finding solutions Lesson 27: Divide decimal dividends by two-digit divisors, estimating quotients, reasoning about the placement of the decimal point, and making connections to a written method. Please estimate, solve, and check. Here are two different examples of dividing decimal dividends by two-digit divisors using the process of estimating quotients. The key steps to this process are:
For homework today, the lesson 13 is the place to start. Lesson 14 worksheet is the "brain bonus". For every problem students do in lesson 14, they may "cross out" an equivalent problem on lesson 13. (Of course, they are welcome to do more...if they like).
Hello im Lauren, your weekly blog writer! So far this week has been great and we are ready to learn, even from that crazy week! In math, we are learning how to multiply in the standard algorithm and the area model form. Last week we started writing our personal narratives, this week we are editing and finding the heart of our stories. In writing we also learned how to use an arch to help find the resolution of our stories! We had started a science research group and we all are in groups and those groups all have one question to research. The type of questions we have all relate to our central idea which is how animals depend on each other and reducing our footprints on the earth. Its been super fun to collaborate together and research! to end the week, we had our buddies. and we read with them. and We also had an AWESOME science project, where we made a mechanical arms and tried to lift cups full of crayons with them! We learned so much and had a wonderful time doing it! We learned how to be better writers, great at math and of course awesome scientists! And now for a cheesy and somewhat funny joke! Q: What do you call a fake noodle A: An impasta Here some photos of us doing some research! Today we talked about multiplying decimals. While a lot of kids remembered rules such as "you move the decimal in the answer as many places as there are digits behind decimals in the problem" our goal today was to justify WHY that is true. We talked about inverse properties- how multiplying and dividing by the same number leaves you with the same value- a great foundation for solving equations in Algebra! From there we made sure we don't ever say, "The decimal goes away" but justify it with- "I make 3.2 into a whole number by multiplying by 10" Then at the end we avoid, "I just count over one space and put the decimal" and say, "I use the inverse of multiplying by 10 and I divide by ten, which moves the decimal one place the the left." I think it helps to avoid what I call "Math-Magic"- when students make numbers/decimals/variables appear and disappear without justification, which can lead to errors in higher level math. But... by the end, of the unit, students won't need to do every step we did today. Seeing patterns and using rules developed from these patterns is a crucial part of math learning. As we do more complicated decimals I'll be looking for those lightbulbs and students saying, "Oh, I can just place the decimal by...... this is justified by....." Happy Math!! If you are looking for links to the videos watched today, go to PYP and look under science. |
AuthorMany people in Mrs. Chandlers class will be a part of creating this blog. Archives
April 2015
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