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.

AI.NF.5

Describe, qualitatively, the functional relationship between two quantities by analyzing key features of a graph. Sketch a graph that exhibits given key features of a function that has been verbally described, including intercepts, where the function is increasing or decreasing, where the function is positive or negative, and any relative maximum or minimum values. Identify the independent and dependent variables. (E)

Example Problems

Let

f(x) = x^3 - 6x^2 + 9x

.
On which intervals is f increasing?

Let

g(x) = x^5 + x^4

.
On which intervals is

g

decreasing?

Let

h(x) = x^4 - 4x^3 + 3

.
On what interval is

h

increasing?

Khan Academy Resources

Intro to slope-intercept form Number of solutions to system of equations review Symmetry of algebraic models Solutions to 2-variable equations Slope-intercept intro Intercepts from a graph Quadratic word problems (standard form)Periodicity of algebraic models Graph interpretation word problems Number of solutions to a system of equations graphically Comparing linear functions word problems Interpret parabolas in context End behavior of algebraic models Interpret a quadratic graph Linear models word problems Graphing linear relationships word problems Linear equations word problems: graphs Number of solutions to a system of equations algebraically Quadratic word problems (vertex form)Complete solutions to 2-variable equations Quadratic word problems (factored form)Connecting exponential graphs with contexts Systems of equations number of solutions: fruit prices (1 of 2)Number of solutions to a system of equations graphically Systems of equations number of solutions: fruit prices (2 of 2)Quadratic word problem: ball Modeling with linear equations: snow Linear equations word problems: earnings Intercepts from an equation Number of solutions to a system of equations Linear graphs word problems Solutions to systems of equations: dependent vs. independent Comparing linear functions word problem: work Periodicity of algebraic models How many solutions does a system of linear equations have if there are at least two?Linear functions word problem: iceberg Linear functions word problem: paint Linear functions word problem: pool End behavior of algebraic models Symmetry of algebraic models Comparing linear functions word problem: climb Worked example: solutions to 2-variable equations Quadratic word problems (vertex form)Completing solutions to 2-variable equations Linear equations word problems: volcano Number of solutions to a system of equations algebraically Analyzing tables of exponential functions Linear graphs word problem: cats Intro to slope-intercept form Solutions to 2-variable equations Quadratic word problems (factored form)Intro to intercepts Graph interpretation word problem: temperature Analyzing graphs of exponential functions Comparing linear functions word problem: walk Linear functions word problem: fuel Analyzing graphs of exponential functions: negative initial value Graph interpretation word problem: basketball Interpret a quadratic graph

1-on-1 AI tutoring aligned to AI.NF.5. 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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