Today a student wrote ten past six on an analogue clock as 6:40.

She then wrote 25 past nine as 10:10

Ed sends this, along with the answer. Can you figure out what this kid was doing?

(Telling time is in CCSS. Huh, didn’t know that.)

Today a student wrote ten past six on an analogue clock as 6:40.

She then wrote 25 past nine as 10:10

Ed sends this, along with the answer. Can you figure out what this kid was doing?

(Telling time is in CCSS. Huh, didn’t know that.)

(The pretty, blue script is a transcription of the pretty, black script.)

What’s going on here? Is this kid going to do OK in 1st grade? What will the 1st grade teacher have to work with?

Thanks to Christopher Danielson for the submission.

From the submitter:

Students were presented with the photo of the bowl of lilikoi and the story: Brayden and Caelyn picked lilikoi. There were 13 lilikoi in the bowl. Caelyn picked 5 lilikoi. How many lilikoi did Brayden pick? The second photo shows student predictions. If a student changed their mind, we crossed out their previous prediction and wrote the new one.

Give a theory as to why students answered 13 before answering 5 (or 8).

Thanks to Mitzi Hasegawa for the excellent submission.

Cena, wherever she is these days, deserves a medal. This video is a classic.

Here we get to see how the teacher followed up with the student, so let’s tackle these questions:

- What can we say that Cena
*does*know? - What is going through her head as she answers these questions? Where does she go wrong?
- What are the teacher’s moves in this clip? What is her strategy for uncovering the student’s errors?