Tap targets as they scroll down the screen. Adjust difficulty with five levels, including a kids mode with unlimited lives. Track local high scores per difficulty. Play with increasing speed and changing targets.
Test knowledge of HTML, CSS, JavaScript, PHP, Java, Python, and C++ with randomized multiple-choice and multi-answer questions. View final score and receive hints for incorrect answers to identify mistakes.
Programming through structured lessons and exercises tailored to different skill levels. Solve coding challenges in easy, medium, or hard modes. Track progress and practice coding concepts interactively.
Alphabets and numbers through tracing, writing, and quizzes. Trace letters in easy mode, refine precision in normal mode, and freely in freestyle mode. Take interactive quizzes to test knowledge and reinforce learning.
View codon tables in four formats: standard table, codon picker, and structural representations. Select codons to display amino acid names, structures, and properties.
Access the complete text of the Texas with real-time section number search and fast full-text search. Find and email sections of the . Print sections and search within search results to refine matches.
Look up words with definitions, example sentences, and pronunciation. Explore related search suggestions and analyze sentences. Save favorite words and review search history. Use flashcards for learning. Adjust font size for readability.
Through their visual origins and historical evolution. Explore character components and stroke order. Listen to pronunciations and practice writing with guided exercises.
Program Hopper drone with visual blocks or JavaScript. Control drone functions and access updated robotics lessons. Retain core features from Google Workbench™.
Alphabets and numbers through tracing, practice, and quizzes. Trace letters in easy mode, refine precision in normal mode, and freely in freestyle mode. Take interactive quizzes to test knowledge and reinforce learning.
A metronome with adjustable beats-per-minute from 40 to 208. Provides audible and visual beat indicators. Includes a chromatic tuner that guides users to the correct pitch with an animated indicator.
Coding basics through interactive puzzles and logic challenges. Create production lines by arranging instructions like cut, turn, and paint. Use tangram pieces to rebuild the world of Fox.
Access legal texts offline without internet or printed books. Add custom notes and highlights. Create bookmarks and print articles. Email any section. Search quickly. Designed for legal professionals, students, and enthusiasts.
Teach children coding through drag-and-drop lessons and interactive adventures. Complete coding challenges to save the Coding Islands. Track progress and unlock new levels. Develop logical thinking and problem-solving skills.