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.

M.1HS.19

Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). (e.g., Given a graph of one quadratic function and an algebraic expression for another, say which has the larger maximum.)

Example Problems

Two videos accumulate views at constant hourly rates. Video Ripple gains 900 views per hour, and after 17 hours it had 16,500 views.

The view count for Video Summit as a function of time (in hours) is given by the table of values.

Time (hours)	Views
3	4400
10	10000
18	16400

Which video has the greater y-intercept?

Two savings accounts receive constant monthly deposits. Account Gray increases by

\$150

per month, and it had a balance of

\$2,780

after 14 months.

The balance of Account Jade as a function of time (in months) is given by the table of values.

Time (months)	Balance (dollars)
4	1	200
12	2	600
20	4	000

Which account has the greater y-intercept?

Two plants are growing at constant rates. Plant Sunbeam grows

1.8 \text{ centimeters per day}

, and it measured

34.2 \text{ centimeters}

after

12 \text{ days}

.

The height of Plant Northstar as a function of time (in days) is given by the table of values.

Time (days)	Height (cm)
4	18
9	28
14	38

Which plant has the greater y-intercept?

Khan Academy Resources

Comparing linear functions word problems Compare quadratic functions Comparing linear functions word problem: work Comparing linear functions: equation vs. graph Comparing linear functions: faster rate of change Comparing linear functions word problem: climb Comparing maximum points of quadratic functions Comparing features of quadratic functions Comparing linear functions word problem: walk Comparing linear functions: same rate of change

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