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.

8.FGR.6.3

Explain the meaning of the predicted slope (rate of change) and the predicted intercept (constant term) of a linear model in the context of the data.

Example Problems

Connor owes money on a car loan.

He pays $200 each month. After 5 months, he still owes $6400.

What was the original amount of Connor's loan?

Damien's puppy gains 0.4 kilograms each week.
After 7.5 weeks of steady growth, the puppy weighed 14.2 kilograms.

How much did the puppy weigh when Damien first got it?

Harry owes the bank money.

To repay his debt, he paid $150 back to the bank each month.

After 10 months, his remaining debt was $6900.

What was the original amount of Harry's debt?

Khan Academy Resources

Writing slope-intercept equations Intro to slope-intercept form Graphing slope-intercept form Graphing lines from slope-intercept form review Slope-intercept form review Intercepts from an equation Slope-intercept intro Estimating equations of lines of best fit, and using them to make predictions Slope-intercept from two points Estimating slope of line of best fit Graph from slope-intercept form Slope-intercept equation from graph Interpreting slope and y-intercept for linear models Linear & nonlinear functions Slope-intercept equation from graph Recognizing linear functions Intercepts from an equation Worked example: intercepts from an equation Graph from slope-intercept equation Converting to slope-intercept form Slope-intercept equation from slope & point Slope-intercept equation from two points Proving slope is constant using similarity Line of best fit: smoking in 1945 Interpreting a trend line Linear & nonlinear functions: table Intro to slope-intercept form Linear & nonlinear functions: missing value Slope-intercept form from a table Linear & nonlinear functions: word problem

1-on-1 AI tutoring aligned to 8.FGR.6.3. 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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