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.

MA.912.AR.2.7

Write two-variable linear inequalities to represent relationships between quantities from a graph or a written description within a mathematical or real-world context.

Example Problems

Marina wants to spend at most $40 on school supplies.

Each binder costs $4.50, and each pack of pencils costs $1.20.

Write an inequality that represents the number of binders (

x

) and packs of pencils (

p

) she can buy within her budget.

Jordan wants to spend at most

\$24

at a bakery. Each loaf of bread costs

\$3.20

, and each pastry costs

\$1.80

.

Write an inequality that represents the number of loaves of bread

(x)

and pastries

(p)

Jordan can buy on this budget.

Wang Hao wants to spend at most $15 on dairy products.

Each liter of goat milk costs $2.40, and each liter of cow's milk costs $1.20.

Write an inequality that represents the number of liters of goat milk (

x

) and cow's milk (

m

) Wang Hao can buy on his budget.

Khan Academy Resources

Two-variable inequalities from their graphs Two-variable inequalities word problems Two-variable inequalities from their graphs Solving two-variable inequalities word problem Writing two-variable inequalities word problem Interpreting two-variable inequalities word problem

1-on-1 AI tutoring aligned to MA.912.AR.2.7. Instant help for students, real-time insights for teachers.

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