This has been another busy week for the students. They continued to build their understanding of estimating two and three digit addition equations. Working to understand when you would round a number up or when it is rounded down.
11 rounds down to 10
16 rounds up to 20
5 is the dividing line for knowing what direction you will round to.
Students has have been working with increasing and decreasing patterns. Learning and practicing the rules for skip counting was the focus of these lessons. Students should be able to count by 2, 5 and 10 starting at any number and they should also be getting more comfortable counting by 3s and 4s.
We worked with larger numbers by breaking them down into more comfortable numbers. For example:
Skip count by 17s starting at 10
17 is really just 10+5+2=
We can do smaller jumps to help us skip count
Students will continue to build and record number patterns and begin looking at how T-charts are used to support our pattern work.
Here are some practice sites:
Students worked to complete their visual representation of biodegradable and non-biodegradable objects. This connected both natural and human wastes with decomposers, which help our world, stay healthy. Next students will begin to look at different forms of packaging and why packaging is needed in our world today.
Want some scientific reading?