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.

NC.M2.G-SRT

NC.M2.G-SRT.1Verify experimentally the properties of dilations with given center and scale factor:NC.M2.G-SRT.12Develop properties of special right triangles (45-45-90 and 30-60-90) and use them to solve problems.NC.M2.G-SRT.1aWhen a line segment passes through the center of dilation, the line segment and its image lie on the same line. When a line segment does not pass through the center of dilation, the line segment and its image are parallel.NC.M2.G-SRT.1bThe length of the image of a line segment is equal to the length of the line segment multiplied by the scale factor.NC.M2.G-SRT.1cThe distance between the center of a dilation and any point on the image is equal to the scale factor multiplied by the distance between the dilation center and the corresponding point on the pre-image.NC.M2.G-SRT.1dDilations preserve angle measure.NC.M2.G-SRT.2Understand similarity in terms of transformations.NC.M2.G-SRT.2aDetermine whether two figures are similar by specifying a sequence of transformations that will transform one figure into the other.NC.M2.G-SRT.2bUse the properties of dilations to show that two triangles are similar when all corresponding pairs of sides are proportional and all corresponding pairs of angles are congruent.NC.M2.G-SRT.3Use transformations (rigid motions and dilations) to justify the AA criterion for triangle similarity.NC.M2.G-SRT.4Use similarity to solve problems and to prove theorems about triangles. Use theorems about triangles to prove relationships in geometric figures.NC.M2.G-SRT.4aA line parallel to one side of a triangle divides the other two sides proportionally and its converse.NC.M2.G-SRT.4bThe Pythagorean Theorem NC.M2.G-SRT.6Verify experimentally that the side ratios in similar right triangles are properties of the angle measures in the triangle, due to the preservation of angle measure in similarity. Use this discovery to develop definitions of the trigonometric ratios for acute angles.NC.M2.G-SRT.8Use trigonometric ratios and the Pythagorean Theorem to solve problems involving right triangles in terms of a context.

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