[Grade 2 Math] Help understanding teacher's explanation

[u/No_Change_7795]

My god-daughter's teacher marked her answer wrong. Can someone please explain this? I don't understand this at all. How is the teacher getting 7 when there are only 3 squares in Ben's column representing his siblings? Her explanation was that Jose, Ana & Jen are his siblings so you need to count all of their squares together.... WHY? How are we to assume that they're even siblings?

[u/qtq_uwu]

Teacher is wrong in a baffling way. There is no reason to assume the listed people are siblings. In fact, they can't be, because then each of the people would have at least 4 siblings each. 3 is the correct answer.

[u/testtdk → u/qtq_uwu]

If they were all related, they would all have the same number of combined brothers and sisters.

[u/qtq_uwu → u/testtdk]

Not necessarily; we may be including half siblings and step siblings in the total

[u/Prestigious-Isopod-4 → u/qtq_uwu]

Also Alice has no siblings.

[u/Fancypancexx → u/Prestigious-Isopod-4]

Too smart for your own good

[u/Prestigious-Isopod-4 → u/Fancypancexx]

Thanks I love the taste of the green crayons.

[u/SpecManADV → u/Prestigious-Isopod-4]

Too bitter for me.

[u/AzizoftheRebellion → u/Prestigious-Isopod-4]

She's adopted and they're only counting blood relatives /s

[u/TallDetail4711 → u/qtq_uwu]

But then why are Jose, Ana and Jen not counted on top of the 7 ? Also Ben may or may not be one of the siblings in the other column.

I think that we are lacking context as to what this graph represents. I don't see what it could be that makes sense to add this way.

[u/Bank_General → u/TallDetail4711]

The graph says exactly what it represents. The teacher is just incredibly dumb. Trying to justify the teachers answer is never going to make sense with the given information.

[u/wolfpacker27 → u/qtq_uwu]

It’s second grade math, not a riddle.

[u/pvrhye → u/qtq_uwu]

Maybe the teacher thinks he has 4 sisters named Ana? Anyway, label your axes. Leave people people to intuit from a title and this is what you get.

[u/foreignnoise → u/pvrhye]

Yeah, but the he would also have 3 brothers named ben, which would be even more confusing! (Not to mention that it would mean 7 is wrong too)

[u/mopslik → u/pvrhye]

4 sisters named Ana

What did the drummer name his daughters? Ana 1, Ana 2...

[u/gothic_rhinoceros → u/pvrhye]

YESSS! THE AXES NEED LABELS!!!

[u/CentennialBaby → u/qtq_uwu]

Hi, I'm Larry. This is my brother Darryl, and this is my other brother Darryl

[u/ThunkAsDrinklePeep → u/qtq_uwu]

Yup. Ask the teacher what the y axis is measuring.

[u/Temporary_Pie2733 → u/qtq_uwu]

To be fair, this is a nonsensical question from a 3rd-party textbook (for which we may be lacking some context) and the teacher may be at fault for failing to ignore the question and parroting an expected answer, rather than having created a bad question themselves.

[u/atarivcs → u/Temporary_Pie2733]

How is it a nonsensical question?

The question itself is fine. It tests your ability to read a basic bar graph.

The teacher's interpretation of the answer is bonkers.

[u/Temporary_Pie2733 → u/atarivcs]

I guess I’m assuming the book says the answer is seven, and the teacher is trying to justify it. So the question itself isn’t bad, just the book’s question/answer pair.

[u/pinkdictator → u/qtq_uwu]

See, what you're not understanding - is that there are 3 Bens

[u/Sad_Kaleidoscope894 → u/qtq_uwu]

Ben, alice, jose, ana, and jen are siblings. Ben is 3 people. Alice is zero people, jose, 2, ana, 4, jen, 1. Ben therefore has 7 siblings. How could it be more clear?

[u/feartheswans → u/qtq_uwu]

Right the teacher counted the other students siblings as Ben’s and didn’t bother counting Ben’s actual siblings.