What is a base 10? Have you ever really sat down and thought about what is a base 10? We’re breaking it down and chatting about how we can use base 10 with our students! 

In this episode we’re chatting about what is a base 10 & the implications for our own instruction:

In this episode you will chat about: 

• the meaning of base 10 
• why it matters 
• how you can support students in their base 10 development 

Links Mentioned in the Episode: 

🤍Guide to Engaging Math Discussions

Books I love & mentioned often: 

📗Adding it Up https://amzn.to/3FzM4as 

📘Children’s Mathematics Cognitively Guided Instruction  https://amzn.to/3FzLMQU 

📙Principles to Action: Ensuring Mathematical Success for All https://amzn.to/42o816h 

📕5 Practices for Orchestarting Math Discusions https://amzn.to/3zagEEl 

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Interested in Reading More? Read on about Base 10!

The first time I heard about “base 10” was in college. I had a great math methods teacher that made us grapple and discuss and push ourselves… Unfortunately the methods didn’t really stick with me as I went into the classroom. I actually probably needed WAY more time.

I was recently talking to a literacy coach and she shared with me some research about teacher professional development. Which in turn, sent me down a rabbit hole of research.

 I found a review of 1,300 studies done on professional developments’ effect on student achievement. What it found was… , “Studies that had more than 14 hours of professional development showed a positive and significant effect on student achievement from professional development. The three studies that involved the least amount of professional development (5–14 hours total) showed no statistically significant effects on student achievement.” 

7 Collectively, the studies that Yoon et al. (2007) reviewed suggested that the duration or “dosage” of PD may be related to impact. The average number of contact hours was about 48 hours across the nine studies, The six studies provided more intensive PD, with contact hours ranging from 30 to more than 100. With the exception of one study with 83 contact hours, all the studies with 30 or more hours of PD resulted in significant effects on student achievement

So, maybe if I had more professional development in my early years of teaching on math instruction or more than a 3 credit hour class on the topic I would have started my career teaching gin a different way 

What is base 10? 

A place value system– assigns a value to each place in a number. 

Guide to Student Centered Math