Spaced practice then trains the long-term memory. Then learn and rehearse the second item again within the soft-term memory span. Then you would go back, after an interval, to the first item. You've achieved immediate rehearsal and also spaced practice. Furthermore, if you test yourself and succeed in recalling the correct answer, you memory for those facts will be considerable strengthened compared to merely having the information given to you.
Active involvement is always a more powerful memory enhancer than passive learning.
1 In JWM, you actually write down Kana and Kanji whilst doing exercises. This trains your writing hand in character construction and also adds the element of involvement. JWM uses a unique handwritten-style font to provide good examples of character structure. There is a significant distinction between these two memory systems - recall is generally a much more powerful and useful type of memory. This is the common experience of feeling that you know a name, yet are unable to recall it accurately and completely.