2 minor edit for sentence flow.
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I just remembered that I do know the answer to this question. In Eruvin 54, much advice is given on the topic, including:

  • Learn out-loud -- Rabbi Shmuel said to Rav Yehuda: "Open your mouth when you learn written or oral Torah, in order that you will remember it and live a long time." Also, Rabbi Yitzhok said, "Torah is close to you when it is [audible] in your mouth and your heart [intends to fulfill it; alt. Maharsha - if it is audible in your mouth, you will remember it and be able to fulfill it]."
  • Approach your learning with humility -- As Rava, citing the verse "Umi'Midbar Matanah umi'Matanah Nachli'el umi'Nachli'el Bamos...", taught: "When a person makes himself Hefker to all like a Midbar (wilderness), Torah is given to him as a gift; after this, it is like a Nachalah (inheritance) to him; then, he is elevated (Bamos); If he raises himself (becomes haughty), Hash-m lowers him - "Umi'Bamos ha'Gai (the canyon)"; if he repents [from his haughtiness], Hash-m raises him - "Kol Ge Yinasei".
  • Repetition and Review -- G-d taught the Torah to Moses completely through four times; Moses then taught the Torah to just Aaron, then to Aaron and Elazar, then to Aaron, Elazar and the Elders, and then to Aaron, Elazar, the Elders and all of Israel. So Aaron learned it four times from Moses, Elazar learned it three times from Moses, the Elders heard it twice from Moses, and the congregation heard it once from him. Then Moses left and Aaron took over. Each group heard the Torah four times and taught it four times. RAbbi Eliezer learned from this that a student will retain his Torah if he hears it four times. While the Gemara doesn't go further, I would add that we can also learn from this that teaching the subject four times further solidifies the knowledge in one's own brain.

I just remembered that I do know the answer to this question. In Eruvin 54, much advice is given on the topic, including:

  • Learn out-loud -- Rabbi Shmuel said to Rav Yehuda: "Open your mouth when you learn written or oral Torah, in order that you will remember it and live a long time." Also, Rabbi Yitzhok said, "Torah is close to you when it is [audible] in your mouth and your heart [intends to fulfill it; alt. Maharsha - if it is audible in your mouth, you will remember it and be able to fulfill it]."
  • Approach your learning with humility -- As Rava, citing the verse "Umi'Midbar Matanah umi'Matanah Nachli'el umi'Nachli'el Bamos...", taught: "When a person makes himself Hefker to all like a Midbar (wilderness), Torah is given to him as a gift; after this, it is like a Nachalah (inheritance) to him; then, he is elevated (Bamos); If he raises himself (becomes haughty), Hash-m lowers him - "Umi'Bamos ha'Gai (the canyon)"; if he repents [from his haughtiness], Hash-m raises him - "Kol Ge Yinasei".
  • Repetition and Review -- G-d taught the Torah to Moses completely through four times; Moses then taught the Torah to just Aaron, then to Aaron and Elazar, then to Aaron, Elazar and the Elders, and then to Aaron, Elazar, the Elders and all of Israel. So Aaron learned it four times from Moses, Elazar learned it three times from Moses, the Elders heard it twice from Moses, and the congregation heard it once from him. Then Moses left and Aaron took over. Each group heard the Torah four times and taught it four times. RAbbi Eliezer learned from this that a student will retain his Torah if he hears it four times. While the Gemara doesn't go further, I would add that we can also learn from this that teaching the subject four times further solidifies the knowledge in one's brain.

I just remembered that I do know the answer to this question. In Eruvin 54, much advice is given on the topic, including:

  • Learn out-loud -- Rabbi Shmuel said to Rav Yehuda: "Open your mouth when you learn written or oral Torah, in order that you will remember it and live a long time." Also, Rabbi Yitzhok said, "Torah is close to you when it is [audible] in your mouth and your heart [intends to fulfill it; alt. Maharsha - if it is audible in your mouth, you will remember it and be able to fulfill it]."
  • Approach your learning with humility -- As Rava, citing the verse "Umi'Midbar Matanah umi'Matanah Nachli'el umi'Nachli'el Bamos...", taught: "When a person makes himself Hefker to all like a Midbar (wilderness), Torah is given to him as a gift; after this, it is like a Nachalah (inheritance) to him; then, he is elevated (Bamos); If he raises himself (becomes haughty), Hash-m lowers him - "Umi'Bamos ha'Gai (the canyon)"; if he repents [from his haughtiness], Hash-m raises him - "Kol Ge Yinasei".
  • Repetition and Review -- G-d taught the Torah to Moses completely through four times; Moses then taught the Torah to just Aaron, then to Aaron and Elazar, then to Aaron, Elazar and the Elders, and then to Aaron, Elazar, the Elders and all of Israel. So Aaron learned it four times from Moses, Elazar learned it three times from Moses, the Elders heard it twice from Moses, and the congregation heard it once from him. Then Moses left and Aaron took over. Each group heard the Torah four times and taught it four times. RAbbi Eliezer learned from this that a student will retain his Torah if he hears it four times. While the Gemara doesn't go further, I would add that we can also learn from this that teaching the subject four times further solidifies the knowledge in one's own brain.
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I just remembered that I do know the answer to this question. In Eruvin 54, much advice is given on the topic, including:

  • Learn out-loud -- Rabbi Shmuel said to Rav Yehuda: "Open your mouth when you learn written or oral Torah, in order that you will remember it and live a long time." Also, Rabbi Yitzhok said, "Torah is close to you when it is [audible] in your mouth and your heart [intends to fulfill it; alt. Maharsha - if it is audible in your mouth, you will remember it and be able to fulfill it]."
  • Approach your learning with humility -- As Rava, citing the verse "Umi'Midbar Matanah umi'Matanah Nachli'el umi'Nachli'el Bamos...", taught: "When a person makes himself Hefker to all like a Midbar (wilderness), Torah is given to him as a gift; after this, it is like a Nachalah (inheritance) to him; then, he is elevated (Bamos); If he raises himself (becomes haughty), Hash-m lowers him - "Umi'Bamos ha'Gai (the canyon)"; if he repents [from his haughtiness], Hash-m raises him - "Kol Ge Yinasei".
  • Repetition and Review -- G-d taught the Torah to Moses completely through four times; Moses then taught the Torah to just Aaron, then to Aaron and Elazar, then to Aaron, Elazar and the Elders, and then to Aaron, Elazar, the Elders and all of Israel. So Aaron learned it four times from Moses, Elazar learned it three times from Moses, the Elders heard it twice from Moses, and the congregation heard it once from him. Then Moses left and Aaron took over. Each group heard the Torah four times and taught it four times. RAbbi Eliezer learned from this that a student will retain his Torah if he hears it four times. While the Gemara doesn't go further, I would add that we can also learn from this that teaching the subject four times further solidifies the knowledge in one's brain.