Second Grade

Today, I tried a new lesson from the Georgia Tasks, on page 54 in Unit 1. This lesson was called;

CONSTRUCTING TASK: Building Base-Ten Numbers 

 It is actually suppose to take 2 days but we got started in one day. To build fluency we started with a Number talk.  I did not spend too much time on re framing the equations because this was my first time working with this group. I did try to annotate as much as possible there thinking. The students were thinking very linear and mostly started solving left to right ( this is a great skill to have when moving into algebra) However, the began to build ten quickly.  Happy Happy JOY JOY one boy Jackson was able to use a derived strategy he was able to look at problem B. and use it to answer problem C. because all the numbers are the same they just added a 4. Very impressive!!! I can not wait to see what happens next week!

Next we moved into the lesson which was about place value and representing numbers in different forms. 

 Here is the gist of the lesson:

Common Core Standards

MCC2.NBT.1 Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:

a. 100 can be thought of as a bundle of ten tens — called a “hundred.”
b. The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three,

four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

MCC2.NBT.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

MCC2.NBT.4 Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of comparisons.

Mathematical Practice Focus: 4. Model with mathematics. 

Lesson Formative Assessment:  Students will be able to represent a number in 3 different ways, standard form, model drawing, expanded form, explain how to change the value of the number by moving place of digit

 To prepare for this lesson the students needed dice. I had did not have enough for each team to play so here was my solution which worked out well not one die was destroyed.

Here is the website where you can print out the die,I printed them on card stock and hot glued them together. They are large but fun and it worked.

www.timvandevall.com 
http://timvandevall.com/printable-paper-dice-template/

 

As, a group we practiced this game then I sent them out on their own to play.  The students did some great work. They still need to work on several areas but it was a great start.

 This little guy drew a model with the accurate number but he made them all look the same. This is something we are going to work on for next week.   I was very impressed with the amount of intuitive thinking these students had. They had never been exposed to the term expanded form but they were able to figure out what it was and begin to apply it. Next, week we will review this and move onto 4 digits for the more advanced students.

Happy Tuesday!