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 AFA.NR.2.1 taught?

This standard is part of the AFA curriculum in Georgia Standards of Excellence - Mathematics.

Are there practice problems for AFA.NR.2.1?

Yes, there are 3 practice problems available for AFA.NR.2.1 with worked examples.

What learning resources are available for AFA.NR.2.1?

There are 14 Khan Academy resources available for AFA.NR.2.1, including 7 videos, 6 exercises, 1 articles.

AFA.NR.2.1: Use fractions, decimals, percents, and ratios to solve problems related to budgets, income tax rates, payroll deductions, pie charts, percent yield, sales tax, percent populations, rent increase, cost savings, debt-to-income ratios, stock splits, floor plans and scale models, trigonometric calculations, banking services, and other business and financial applications.

Use fractions, decimals, percents, and ratios to solve problems related to budgets, income tax rates, payroll deductions, pie charts, percent yield, sales tax, percent populations, rent increase, cost savings, debt-to-income ratios, stock splits, floor plans and scale models, trigonometric calculations, banking services, and other business and financial applications.

Example Problems

An estimated 3 out of every 25 men are left-handed.
What percent of men are left-handed?

In a cookie jar, 8 out of the 20 cookies have chocolate chips.
What percentage of the cookies have chocolate chips?

In our solar system, 6 of the 8 planets have moons.
What percentage of the planets have moons?

Khan Academy Resources

Warmup: exponential vs. linear growth Exponential growth vs. decay Graphing exponential growth & decay Graphs of exponential growth Exponential vs. linear models Exponential vs. linear growth over time Linear vs. exponential growth: from data Graphing exponential growth & decay Graphs of exponential growth Linear vs. exponential growth: from data Exponential decay intro Exponential vs. linear models: verbal Modeling with basic exponential functions word problem Linear vs. exponential growth: from data (example 2)

1-on-1 AI tutoring aligned to AFA.NR.2.1. 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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