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-CO

NC.M2.G-CO.10Prove theorems about triangles and use them to prove relationships in geometric figures including:NC.M2.G-CO.10aThe sum of the measures of the interior angles of a triangle is 180.NC.M2.G-CO.10bAn exterior angle of a triangle is equal to the sum of its remote interior angles.NC.M2.G-CO.10cThe base angles of an isosceles triangle are congruent.NC.M2.G-CO.10dThe segment joining the midpoints of two sides of a triangle is parallel to the third side and half the length.NC.M2.G-CO.2Experiment with transformations in the plane.NC.M2.G-CO.2aRepresent transformations in the plane.NC.M2.G-CO.2bCompare rigid motions that preserve distance and angle measure (translations, reflections, rotations) to transformations that do not preserve both distance and angle measure (e.g. stretches, dilations).NC.M2.G-CO.2cUnderstand that rigid motions produce congruent figures while dilations produce similar figures.NC.M2.G-CO.3Given a triangle, quadrilateral, or regular polygon, describe any reflection or rotation symmetry i.e., actions that carry the figure onto itself. Identify center and angle(s) of rotation symmetry. Identify line(s) of reflection symmetry.NC.M2.G-CO.4Verify experimentally properties of rotations, reflections, and translations in terms of angles, circles, perpendicular lines, parallel lines, and line segments.NC.M2.G-CO.5Given a geometric figure and a rigid motion, find the image of the figure. Given a geometric figure and its image, specify a rigid motion or sequence of rigid motions that will transform the pre-image to its image.NC.M2.G-CO.6Determine whether two figures are congruent by specifying a rigid motion or sequence of rigid motions that will transform one figure onto the other.NC.M2.G-CO.7Use the properties of rigid motions to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent.NC.M2.G-CO.8Use congruence in terms of rigid motion. Justify the ASA, SAS, and SSS criteria for triangle congruence. Use criteria for triangle congruence (ASA, SAS, SSS, HL) to determine whether two triangles are congruent.NC.M2.G-CO.9Prove theorems about lines and angles and use them to prove relationships in geometric figures including:NC.M2.G-CO.9aVertical angles are congruent.NC.M2.G-CO.9bWhen a transversal crosses parallel lines, alternate interior angles are congruent.NC.M2.G-CO.9cWhen a transversal crosses parallel lines, corresponding angles are congruent.NC.M2.G-CO.9dPoints are on a perpendicular bisector of a line segment if and only if they are equidistant from the endpoints of the segment.NC.M2.G-CO.9eUse congruent triangles to justify why the bisector of an angle is equidistant from the sides of the angle.

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