Is Goblins free for teachers?

Yes. Goblins offers a generous free tier that includes 1 live feedback assignment per week, insights on student mastery and replays, and the ability to upload your own content. The Max plan adds unlimited assignments, superadaptive mode, grade exports, standards growth reports, and SSO/LMS integration, with per-student pricing for schools and districts.

How does Goblins work?

Three simple steps: (1) Share an assignment from thousands of standards-aligned topics using a share code. (2) Students speak and draw their thinking naturally, and Goblins responds with Socratic questioning that sounds just like their teacher. (3) Teachers get real-time formative insights showing what students struggle with and suggestions to inform instruction.

Does Goblins prevent cheating?

Yes. Goblins uses a purpose-trained AI model that evaluates cheating signals in real time. It can detect when students are copying answers, using external tools inappropriately, or not genuinely working through problems. Copy-pasting answers is also blocked.

Can I use my own voice with Goblins?

Yes. Teachers can record their voice and take a selfie to create a custom 3D avatar in about 30 seconds. Students then hear help in their own teacher's voice and see a familiar face, making the experience more personal and effective.

What math levels does Goblins cover?

Goblins covers math from Grade 5 through AP Calculus, including thousands of standards-aligned topics. Teachers can also upload their own content for custom assignments at any level.

Is Goblins FERPA compliant?

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Does Goblins support English Language Learners?

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What grade level is NC.6.RP.3.c taught?

This standard is part of the NC curriculum in North Carolina Standard Course of Study - Mathematics.

Are there practice problems for NC.6.RP.3.c?

Yes, there are 3 practice problems available for NC.6.RP.3.c with worked examples.

What learning resources are available for NC.6.RP.3.c?

There are 17 Khan Academy resources available for NC.6.RP.3.c, including 11 videos, 5 exercises, 1 articles.

NC.6.RP.3.c: Using a unit ratio. | North Carolina Standard Course of Study - Mathematics

Using a unit ratio.

Example Problems

Find the unknown number that makes the following ratio equivalent to:

9:6

?:4

Find the unknown number that makes the following ratio equivalent to:

2:3

14:?

Find the unknown number that makes the following ratio equivalent to:

2:12

1:?

Khan Academy Resources

Rate review Equivalent ratio word problems Rate problems Comparing rates Proportion word problems Unit rates Proportion word problem: cookies Solving unit rate problem Solving unit price problem Intro to rates Simplify a ratio from a tape diagram Proportion word problem: hot dogs Understanding equivalent ratios Rate problems Comparing rates example Part to whole ratio word problem using tables Interpreting unequal ratios

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