Belajar Matematika Online

IXL Math On IXL, math is more than just numbers. With unlimited questions, engaging item types, and real-world scenarios, IXL helps learners experience math at its most mesmerizing! Pre-K skills Represent numbers - up to 5 Inside and outside Classify shapes by color Long and short Wide and narrow See all 77 pre-K skills Kindergarten skills Fewer, more, and same Read clocks and write times Seasons Count money - pennies through dimes Shapes of everyday objects I See all 182 kindergarten skills First-grade skills Counting tens and ones - up to 99 Hundred chart Subtraction facts - numbers up to 10 Read a thermometer Measure using an inch ruler See all 210 first-grade skills Second-grade skills Counting patterns - up to 1,000 Greatest and least - word problems - up to 1,000 Compare clocks Create pictographs II Which customary unit of volume is appropriate? See all 287 second-grade skills Third-grade skills Convert between standard and expanded form Count equal groups Estimate sums Show fractions: area models Find equivalent fractions using area models See all 384 third-grade skills Fourth-grade skills Addition: fill in the missing digits Divide larger numbers by 1-digit numbers: complete the table Objects on a coordinate plane Circle graphs Place values in decimal numbers See all 340 fourth-grade skills Fifth-grade skills Least common multiple Multiply fractions by whole numbers: word problems Sale prices Find start and end times: word problems Parts of a circle See all 347 fifth-grade skills Sixth-grade skills Compare temperatures above and below zero Which is the better coupon? Evaluate variable expressions with whole numbers Classify quadrilaterals Create double bar graphs See all 321 sixth-grade skills Seventh-grade skills Solve percent equations Arithmetic sequences Evaluate multi-variable expressions Identify linear and nonlinear functions Pythagorean theorem: word problems See all 289 seventh-grade skills Eighth-grade skills Write variable expressions for arithmetic sequences Add and subtract polynomials using algebra tiles Add polynomials to find perimeter Multiply and divide monomials Scatter plots See all 317 eighth-grade skills Algebra 1 skills Write and solve inverse variation equations Write an equation for a parallel or perpendicular line Solve a system of equations by graphing Solve a system of equations using substitution Rational functions: asymptotes and excluded values See all 309 Algebra 1 skills Geometry skills Triangle Angle-Sum Theorem Proving a quadrilateral is a parallelogram Properties of kites Similarity of circles Perimeter of polygons with an inscribed circle See all 221 Geometry skills Algebra 2 skills Multiply complex numbers Product property of logarithms Find the vertex of a parabola Write equations of ellipses in standard form from graphs Reference angles See all 322 Algebra 2 skills Precalculus skills Identify inverse functions Graph sine functions Convert complex numbers between rectangular and polar form Find probabilities using two-way frequency tables Use normal distributions to approximate binomial distributions See all 261 Precalculus skills Calculus skills Find limits using the division law Determine end behavior of polynomial and rational functions Determine continuity on an interval using graphs Find derivatives of polynomials Find derivatives using the chain rule I See all 97 Calculus skills Mathematics is a persistent source of difficulty and frustration for students of all ages. Elementary students spend years trying to master arithmetic. Teens struggle with the shift to algebra and its use of variables. High-school students must face diverse challenges like geometry, more advanced algebra, and calculus. Even parents experience frustration as they struggle to recall and apply concepts they had mastered as young adults, rendering them incapable of providing math help for their children. Whether you need top Math tutors in Boston, Math tutors in Detroit, or top Math tutors in Dallas Fort Worth, working with a pro may take your studies to the next level. The truth is, everyone struggles with math at one time or another. Students, especially at the high-school level, have to balance challenging coursework with the demands of other courses and extracurricular activities. Illness and school absences can leave gaps in a student’s instruction that lead to confusion as more advanced material is presented. Certain concepts that are notoriously difficult to master, such as fractions and the basics of algebra, persist throughout high school courses, and if not mastered upon introduction, can hinder a student’s ability to learn new concepts in later courses. Even students confident in their math skills eventually find a course or concept incomprehensible as they reach advanced math classes. In other words, no matter what your age or ability, everyone eventually needs help with math. Varsity Tutors offers resources like free Math Diagnostic Tests to help with your self-paced study, or you may want to consider a Math tutor. Varsity Tutors is happy to offer free practice tests for all levels of math education. Students can take any one of hundreds of our tests that range from basic arithmetic to calculus. These tests are conveniently organized by course name (e.g. Algebra 1, Geometry, etc.) and concept (e.g. “How to graph a function”). Students can select specific concepts with which they are struggling or concepts that they are trying to master. Students can even use these concept-based practice tests to identify areas in which they may not have realized they were struggling. For instance, if a student is struggling with his or her Algebra 1 course, he or she can take practice tests based on broad algebra concepts such as equations and graphing and continue to practice in more specific subcategories of these concepts. In this way, students can more clearly differentiate between those areas that they fully understand and those that could use additional practice. Better yet, each question comes with a full written explanation. This allows students to not only see what they did wrong, but provides the student with step-by-step instructions on how to solve each problem. In addition to the Math Practice Tests and Math tutoring, you may also want to consider taking some of our Math Flashcards. Varsity Tutors’ Learning Tools also offer dozens of Full-Length Math Practice Tests. The longer format of the complete practice tests can help students track and work on their problem-solving pace and endurance. Just as on the results pages for the concept-specific practice tests, the results for these longer tests also include a variety of scoring metrics, detailed explanations of the correct answers, and links to more practice available through other Learning Tools. These free online Practice Tests can assist any student in creating a personalized mathematics review plan, too, as the results show which of the concepts they already understand and which concepts may need additional review. After reviewing the skills that need work, students can take another Full-Length Math Practice Test to check their progress and further refine their study plan. Once a student creates a Learning Tools account, they can also track their progress on all of their tests. Students can view their improvement as they begin getting more difficult questions correct or move on to more advanced concepts. They can also share their results with tutors and parents, or even their math teacher. Create a Varsity Tutors Learning Tools account today, and get started on a path to better understanding math!
Mau EBOOK "MATEMATIKA KU BISA"? KLIK DI SINI!

Ayat 1 Tahun = 12 Bulan dalam Al-Quran



Bismillah. Seperti yang diajarkan dalam pembelajaran di sekolah, kita ketahui bahwa 1 tahun ada 12 bulan baik pada kalender masehi maupun kalender hijriah. Di dunia saat ini, kalender yang digunakan adalah kalender masehi sedangkan kita umat islam punya kalender sendiri yaitu kalender hijriah.

Al-Battani setelah melakukan pengamatan, ia menghitung lama waktu bumi mengitari matahari (disebut revolusi bumi menurut ilmu astronomi)  adalah terjadi selama 365 hari, 5 jam, 46 menit, 24 detik. Tapi, dengan hanya melakukan pengamatan terhadap bulan saja, kita akan mengetahui bahwa jumlah bulan ada 12 ketika mengitari bumi. Satu tahun ada sebanyak 12 bulan ini adalah ketetapan Allah sebagaimana dalam Al-Quran, Allah berfirman yang artinya:
"Sungguh, jumlah bulan menurut Allah ialah dua belas bulan, (sebagaimana) dalam ketetapan Allah pada waktu Dia menciptakan langit dan bumi, diantaranya ada empat bulan haram. Itulah (ketetapan) agama yang lurus, maka janganlah kamu menzalimi dirimu dalam (bulan yang empat) itu, dan perangilah kaum musyrikin semuanya sebagaimana mereka pun memerangi kamu semuanya. Dan ketauhilah bahwa Allah beserta orang-orang yang takwa" (Q.S. At-Taubah: 36)
Pengukuran waktu yang kita gunakan (misalnya 1 hari ada 12 jam) sekarang ini menggunakan sistem duodesimal (basis 12) dan sexadesimal (basis 60) (contohnya 1 jam ada 60 menit). Hal tersebut disebabkan karena ada metode untuk membagi waktu dan diturunkan pertama kali (menurut sejarawan) dari sistem bilangan yang digunakan oleh peradaban kuno Mediterania. Pada sekitar tahun 1500 SM orang-orang Mesir kuno menggunakan Sistem Bilangan berbasis 12, dan mereka mengembangkan sebuah sistem jam matahari. Para Ahli sejarah berpendapat, orang-orang Mesir Kuno menggunakan sistem bilangan berbasis 12 didasarkan atas jumlah siklus bulan dalam setahun atau bisa juga kemungkinan didasarkan dari jumlah sendi jari manusia (tidak termasuk jempol). 

Revolusi bumi (ilmu astronomi) terjadi selama 365 hari 5 jam 24 detik, jika dibagi 12 maka dalam sebulan rata-rata 30 hari;1 hari = 24 jam (12 jam siang hari dan 12 jam malam hari) diketahui dari lama rotasi bumi (menurut ilmu astronomi); 1 jam = 60 menit diketahui dari berapa lama jarum jam yang panjang berputar dalam satu lingkaran penuh. 

Terlepas dari apakah teori astronomi itu benar atau salah, kita sebagai muslim yang beriman wajib meyakini kebenaran firman Allah berikut ini,
"Dialah yang menjadikan matahari bersinar dan bulan bercahaya, dan Dialah yang menetapkan tempat-tempat orbitnya, agar kamu mengetahui bilangan tahun, dan perhitungan (waktu). Allah tidak menciptakan demikian itu melainkan dengan benar. . . ." Q.S. Yunus:5
Dalam Al-Quran Surat Al-Anam ayat 96, Allah juga berfirman,
"Dia menyingsingkan pagi dan menjadikan malam untuk beristirahat, dan (menjadikan) matahari dan bulan untuk perhitungan. Itulah ketetapan Allah yang Maha Perkasa, Maha Mengetahui"
Allahu'alam.

Berlangganan Update Artikel Terbaru via Email:

4 comments:

  1. Artikel yg anda tulis seakan-akan memaksakan/mencocokkan al quran dgn sains. Ketahuilah bahwa al quran itu merupakan pedoman, rujukan, dan referensi buat umat Islam. Apakah ada satupun ayat dalam al quran yg menyatakan bahwa bumi itu bergerak, atau berputar, atau berotasi, atau beredar???? Demi Allah yg kepadaNya bergantung segala sesuatu, tidak ada satupun ayat yg menyatakan demikian. Maka bagaimana anda mencocokkan/memaksakan al quran cocok dengan pemahaman yg telah anda dapat dari doktrin sains selama ini. Sains mengatakan, kita dapat menghitung jam, dan hari, dan bulan, dan tahun, melalui Rotasi dan peredaran bumi, sementara tak ada ayar yg mengatakan bahwa bumi itu berotasi, berputar, beredar, bahkan bergerakpun bumi tidak. "Dan Dia lah yang menahan bumi agar bumi itu tidak bergerak......".
    Ketahuilah, Apa yg anda katakan sangat berbeda dari apa yang al quran katakan. Anda (mungkin secara tidak sadar) berusaha membantah al quran dengan mengatakan bumi itu beredar, but al quran mengatakan matahari dan bulanlah yg beredar. Maka berhentilah memaksakan tafsiran al quran sesuai dgn sains yg anda dapat selama ini.
    Ketahuilah, peredaran matahari menandakan hitungan hari, dan peredaran bulan menandakan hitungan bulan. Tuhan menatapkan hanya ada dua belas manzilah pada bulan, maka itulah hitungan tahun. Dan di antara 12 itu, terdapat 4 bulan Haram.

    ReplyDelete
  2. Artikel yg anda tulis seakan-akan memaksakan/mencocokkan al quran dgn sains. Ketahuilah bahwa al quran itu merupakan pedoman, rujukan, dan referensi buat umat Islam. Apakah ada satupun ayat dalam al quran yg menyatakan bahwa bumi itu bergerak, atau berputar, atau berotasi, atau beredar???? Demi Allah yg kepadaNya bergantung segala sesuatu, tidak ada satupun ayat yg menyatakan demikian. Maka bagaimana anda mencocokkan/memaksakan al quran cocok dengan pemahaman yg telah anda dapat dari doktrin sains selama ini. Sains mengatakan, kita dapat menghitung jam, dan hari, dan bulan, dan tahun, melalui Rotasi dan peredaran bumi, sementara tak ada ayar yg mengatakan bahwa bumi itu berotasi, berputar, beredar, bahkan bergerakpun bumi tidak. "Dan Dia lah yang menahan bumi agar bumi itu tidak bergerak......".
    Ketahuilah, Apa yg anda katakan sangat berbeda dari apa yang al quran katakan. Anda (mungkin secara tidak sadar) berusaha membantah al quran dengan mengatakan bumi itu beredar, but al quran mengatakan matahari dan bulanlah yg beredar. Maka berhentilah memaksakan tafsiran al quran sesuai dgn sains yg anda dapat selama ini.
    Ketahuilah, peredaran matahari menandakan hitungan hari, dan peredaran bulan menandakan hitungan bulan. Tuhan menatapkan hanya ada dua belas manzilah pada bulan, maka itulah hitungan tahun. Dan di antara 12 itu, terdapat 4 bulan Haram.

    ReplyDelete
  3. iaa, terimakasih atas nasihatnya, benar tidak ada satupun dalil dari al-qur'an menyebut bumi mengitari matahari, kami akan menghapus postingan ini... postingn yg lebih mengutmkn pandangan sains daripada kitabullah..

    ReplyDelete
  4. Kami akan memperbaiki tulisan ini lagi, insya Allah..

    ReplyDelete

Komentar yang tidak baik atau menampilkan segala hal yang tidak baik, tidak akan kami setujui atau akan kami hapus!

Kategori Lainnya

Contact Form

Name

Email *

Message *

Copyright © Matematika Ku Bisa. All rights reserved. Template by CB. Theme Framework: Responsive Design