Reading, Writing and Understanding Numbers Between 100 and 120

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It is the magical time of year where I am busy doing report cards and assessing students.  These assessments are great for reporting progress to parents but are equally as useful for me to see what else still needs work.  In first grade this week, I gave a quick assessment of reading and writing numbers and discovered that I had 7 students in one class that were not consistently able to read and write numbers between 100 and 120.

I decided to pull them to a table after whole group instruction the next day and work on a few small interventions to help them understand this important skill.  It was very focused and intentional which I find very important when doing interventions.  

I started with reviewing how to read numbers such as 100, 12, 5, etc using my arrow cards.  Check out this guest post I did over at Kid's Math Teacher if you want to read more about how I use arrow cards!

Here is 112 pulled apart- also known as expanded form!

Here are the numbers 100 and 12.  Watch what happens when I put them together.

Here is the number 112.  I love how the arrow cards let kids see all the pieces that make up the number

After practicing with the arrow cards, I gave each student three place value cards and had them read the numbers to a partner.  Then each kid read the numbers aloud to the entire group.   

After each kid practiced reading their own numbers, those of their partner and hearing all the numbers read aloud to the group, I collected the cards and had a student flip through them as I chose students to read them aloud. 

This entire intervention took place in 12 minutes.  I will pull this same group one day next week and do parts of this again as well as having students write numbers in this range as I read them.  I will follow up by the end of next week with formative assessment to see if all these students have mastered this skill.

How do you use intervention in  your classroom to make sure students are developing the skills they need?