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?

Yes. Goblins is FERPA and state compliant. Student data privacy and security are a top priority.

Does Goblins support English Language Learners?

Yes. Goblins supports 30+ languages so teachers don't have to translate every worksheet. It is especially helpful for ELL students who need accessible math instruction in their native language.

What grade level is NC.2.OA.1.a.3 taught?

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

What learning resources are available for NC.2.OA.1.a.3?

There are 28 Khan Academy resources available for NC.2.OA.1.a.3, including 14 videos, 14 exercises.

NC.2.OA.1.a.3: Compare-Smaller Unknown | North Carolina Standard Course of Study - Mathematics

Compare-Smaller Unknown

Khan Academy Resources

Solve problems with picture graphs Add and subtract on the number line word problems Subtraction word problems within 100 2-step subtraction word problems within 100 Find the missing number (add and subtract within 100)Adding up to four 2-digit numbers word problems Length word problems Solve problems with line plots Add and subtract within 20 word problems Adding up to four 2-digit numbers 2-step addition word problems within 100 Solve problems with bar graphs Length word problem (US customary)Addition word problems within 100 Adding and subtracting on number line word problems Addition and subtraction word problems: superheroes Subtraction word problem: basketball Adding multiple 2-digit numbers word problems Adding two digit numbers on a number line Picture graphs Addition word problem: horses Length word problems Multi-step subtraction word problem Addition and subtraction word problems: gorillas Adding four two digit numbers Multi step addition word problem Subtraction word problem: crayons Length word problem example (US Customary)

1-on-1 AI tutoring aligned to NC.2.OA.1.a.3. Instant help for students, real-time insights for teachers.

Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.

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